I’ve been really liking [name_f]Hazel[/name_f] lately, even more so since I’ve discovered that it was sparingly but consistently used for boys in the late 19th and early 20th centuries.
So, just to fuel my obsession, I would love to hear some of your ideas! What kind of names would go well with [name_f]Hazel[/name_f]? Looking for masculine, feminine and gender-neutral suggestions. 
(No real life children are being named here obviously, but a few fictional ones may be. 
)
Some names that come to mind, hope it helps 
Masculine
[name_m]Levi[/name_m]
[name_m]George[/name_m]
[name_m]Nico[/name_m]
[name_m]Henry[/name_m]
[name_m]Soloman[/name_m]
[name_m]Kit[/name_m]
[name_m]Auden[/name_m]
[name_m]Christopher[/name_m]
[name_m]Leland[/name_m]
[name_m]Stanley[/name_m]
[name_m]Elijah[/name_m]
[name_m]Brady[/name_m]
[name_m]Sebastian[/name_m]
[name_m]Liam[/name_m]
[name_m]Evan[/name_m]
[name_m]Cove[/name_m]
[name_m]Jacoby[/name_m]
[name_m]Silas[/name_m]
[name_m]Arthur[/name_m]
[name_m]Leo[/name_m]
[name_m]Jude[/name_m]
[name_m]Otto[/name_m]
[name_m]Samuel[/name_m]
[name_m]Zane[/name_m]
[name_m]Beckett[/name_m]
[name_m]Philip[/name_m]
[name_m]Lawrence[/name_m]
[name_m]Alaric[/name_m]
[name_m]Declan[/name_m]
[name_m]Jasper[/name_m]
Feminine
[name_f]Delilah[/name_f]
[name_f]Linnea[/name_f]
[name_f]Ella[/name_f]
[name_f]Alice[/name_f]
[name_f]Tessa[/name_f]
[name_f]Juniper[/name_f]
[name_f]Lillian[/name_f]
[name_f]Aubrey[/name_f]
[name_f]Georgina[/name_f]
[name_f]Everly[/name_f]
[name_f]Harriet[/name_f]
[name_f]Clara[/name_f]
[name_f]Meredith[/name_f]
[name_f]Elise[/name_f]
[name_f]Ivy[/name_f]
[name_f]Sable[/name_f]
[name_f]Penelope[/name_f]
[name_f]Bella[/name_f]
[name_f]Imogen[/name_f]
[name_f]Charlotte[/name_f]
[name_f]Gianna[/name_f]
[name_f]Daisy[/name_f]
[name_f]Adelaide[/name_f]
[name_f]Thea[/name_f]
[name_f]Willow[/name_f]
[name_f]Evelyn[/name_f]
[name_f]Lindsey[/name_f]
[name_f]Primrose[/name_f]
[name_f]Claire[/name_f]
[name_f]Sadie[/name_f]
Gender Neutral
[name_m]Robin[/name_m]
[name_f]Briar[/name_f]
[name_m]Francis[/name_m]
[name_f]Eden[/name_f]
[name_m]Jesse[/name_m]
[name_m]Charlie[/name_m]
[name_f]Sheridan[/name_f]
[name_f]Billie[/name_f]
[name_m]Casey[/name_m]
[name_m]Drew[/name_m]
[name_f]Kennedy[/name_f]
[name_f]Sage[/name_f]
[name_m]Blake[/name_m]
[name_f]Campbell[/name_f]
[name_m]Gray[/name_m]
[name_m]Emory[/name_m]
[name_m]Finley[/name_m]
[name_f]Morgan[/name_f]
[name_f]Bailey[/name_f]
[name_f]Stevie[/name_f]
[name_f]Wren[/name_f]
[name_f]Cassidy[/name_f]
[name_f]Harper[/name_f]
[name_f]Scottie[/name_f]
[name_m]Jamie[/name_m]
[name_f]Addison[/name_f]
[name_f]Harley[/name_f]
[name_m]Cameron[/name_m]
[name_m]Sidney[/name_m]
[name_m]Jordan[/name_m]
[name_m]Bellamy[/name_m]
Some ideas which lean into the whimsical side of [name_f]Hazel[/name_f] on a boy (which I adore, ditto Willow):
[name_f]Winry[/name_f]
[name_f]Lisle[/name_f]
[name_m]Willoughby[/name_m] / Willowby / [name_f]Willodean[/name_f] / [name_f]Willadean[/name_f]
Some that are a bit more grounded or less of an obvious nature theme:
[name_f]Kerensa[/name_f]
[name_m]Robin[/name_m]
[name_f]Hadley[/name_f]
[name_m]Beck[/name_m]
[name_m]Finlo[/name_m]
[name_m]Arley[/name_m]
[name_f]Hazel[/name_f] &
[name_f]Cleo[/name_f]
[name_f]Vivian[/name_f]
[name_f]Clara[/name_f]
[name_m]Edward[/name_m]
[name_m]Wells[/name_m]
[name_m]Milo[/name_m]
[name_m]Hollis[/name_m]
[name_m]Sawyer[/name_m]
[name_m]Brooks[/name_m]
I really love [name_f]Violet[/name_f], [name_f]Sylvie[/name_f], [name_f]Ivy[/name_f] and [name_f]Rose[/name_f] with [name_f]Hazel[/name_f]!
Other options that are either masculine or gender neutral are [name_m]Luca[/name_m], [name_m]Robin[/name_m], [name_f]Sage[/name_f], [name_f]Wren[/name_f]
With Hazel…
[name_m]Clyde[/name_m]
[name_m]Selby[/name_m]
[name_f]Lindsay[/name_f]
[name_f]Merit[/name_f]
[name_f]Wynn[/name_f]
[name_m]Mack[/name_m]
[name_f]Stevie[/name_f]
[name_f]Cleo[/name_f]
[name_m]Chauncey[/name_m]
[name_m]Dorsey[/name_m]
[name_f]Frankie[/name_f]
[name_f]Willodean[/name_f]
[name_f]Lacy[/name_f]
[name_m]Clancy[/name_m]
[name_f]Ruby[/name_f]
[name_m]Jasper[/name_m]
[name_m]Sandy[/name_m]
[name_f]Palmer[/name_f]
[name_m]Garnet[/name_m]
[name_m]Cary[/name_m]
[name_f]Delta[/name_f]
[name_f]Trudie[/name_f]
[name_f]Mavis[/name_f]
[name_m]Bram[/name_m]
[name_f]Lois[/name_f]
[name_m]Pryor[/name_m]
[name_m]Sinclair[/name_m]
[name_m]Bertie[/name_m]
[name_m]Royce[/name_m]
[name_m]Kit[/name_m]
[name_f]Lara[/name_f]
Hazel is lovely 
You’ve had lots of lovely suggestions so count any repeats as me being in agreement with the berries
Rowan
Flora
Kit
William
Theodore
Edmund
Winifred
Evelyn
Edith
Reuben
Norah
Stella
Rory
Robin
Jasper
Samuel
Blythe
Nettie
Piper
Merritt
Prosper
Hope this helps
[name_f]Arrietty[/name_f]
[name_f]Fleur[/name_f]
[name_f]Hermione[/name_f]
[name_f]Isolde[/name_f]
[name_f]Juno[/name_f]
[name_f]Plum[/name_f]
[name_f]Ramona[/name_f]
[name_f]Willa[/name_f]
[name_f]Chloe[/name_f]
[name_f]Esme[/name_f]
[name_f]Ivy[/name_f]
[name_f]Olivia[/name_f]
[name_f]Willow[/name_f]
[name_f]Hazel[/name_f], [name_f]Cleo[/name_f], [name_m]Dashiell[/name_m], [name_m]Lorcan[/name_m]
[name_f]Hazel[/name_f], [name_m]Matthias[/name_m], [name_m]Simon[/name_m], [name_f]Ruth[/name_f], [name_f]Dolly[/name_f]
[name_f]Hazel[/name_f], [name_f]Cora[/name_f], [name_f]Juliet[/name_f], [name_m]Benjamin[/name_m], [name_m]William[/name_m], [name_m]Nicolas[/name_m]
[name_f]Hazel[/name_f], [name_f]Margo[/name_f], [name_f]Genevieve[/name_f], [name_f]Stella[/name_f], [name_m]Hayes[/name_m], [name_m]Thompson[/name_m]
I got sleepy. I have more:
[name_f]Hazel[/name_f], [name_m]Richard[/name_m], [name_m]Wayne[/name_m], [name_f]Doris[/name_f], [name_f]Sue[/name_f]
[name_f]Hazel[/name_f], [name_f]Matilda[/name_f], [name_f]Beatrice[/name_f]
[name_f]Hazel[/name_f], [name_m]Thomas[/name_m], [name_m]George[/name_m]
[name_f]Hazel[/name_f], [name_f]Geraldine[/name_f], [name_f]Lorraine[/name_f], [name_f]Iris[/name_f]
[name_f]Hazel[/name_f], [name_f]Agatha[/name_f], [name_m]Gerald[/name_m], [name_m]Clifton[/name_m]
Masculine
[name_m]Theo[/name_m]
[name_m]William[/name_m]
[name_m]Elijah[/name_m]
[name_m]Elliot[/name_m]
[name_m]Malachai[/name_m]
[name_m]Hudson[/name_m]
Feminine
[name_f]Hannah[/name_f]
[name_f]Eden[/name_f]
[name_f]Sophie[/name_f]
[name_f]Harper[/name_f]
[name_f]Elle[/name_f]
[name_f]Ella[/name_f]
[name_f]Margot[/name_f]
[name_f]Lilith[/name_f]
[name_f]Lilian[/name_f]
[name_f]Lillie[/name_f]
[name_f]Nora[/name_f]
[name_f]Claire[/name_f]
[name_f]Maeve[/name_f]
Gender neutral
[name_m]Blake[/name_m]
[name_m]Rowen[/name_m]
[name_m]Noah[/name_m]
[name_f]Bryn[/name_f]
[name_m]James[/name_m]
[name_f]Hope[/name_f] this helps!