What names go with Sidney?

Looking for suggestions of names which will compliment my son’s name: [name]Sidney[/name]. Our surname is [name]Matthews[/name]. All ideas would be welcome!
Thankyou,
[name]Rachel[/name]

[name]Sidney[/name] and brother…
[name]Theodore[/name] (nn [name]Theo[/name])
[name]Oscar[/name]
[name]Leo[/name] (I like the way this name looks and sounds with [name]Matthews[/name])
[name]Abel[/name]
[name]Benedict[/name]
[name]Edmund[/name]
[name]Felix[/name]
[name]Hugh[/name]
[name]Jude[/name]
[name]Lucas[/name]
[name]Noel[/name]
[name]Oliver[/name]
[name]Owen[/name]
[name]Rufus[/name]
[name]Rupert[/name]
[name]Vincent[/name]
[name]Arthur[/name]
[name]Alfred[/name]
[name]Charles[/name] (nn [name]Charlie[/name])
[name]Christopher[/name]
[name]Douglas[/name]
[name]Francis[/name]
[name]Harvey[/name]
[name]George[/name]
[name]Laurence[/name]
[name]Louis[/name]
[name]Nathan[/name]
[name]Ned[/name]
[name]Asher[/name]
[name]Gabriel[/name]
[name]Cooper[/name]
[name]Garrett[/name]
[name]Grayson[/name]
[name]Holden[/name]
[name]Jefferson[/name]
[name]Roman[/name]
[name]Tennyson[/name]

[name]Sidney[/name] and…

[name]Samuel[/name]
[name]Forrest[/name]
[name]Irving[/name]
[name]Lowell[/name]
[name]Garrison[/name]
[name]Norris[/name]
[name]Henry[/name]
[name]Nelson[/name]
[name]Russell[/name]
[name]Roland[/name]
[name]Clark[/name]
[name]Merrill[/name]
[name]Norman[/name]
[name]Marshall[/name]
[name]Campbell[/name]
[name]Darcy[/name]
[name]Dewey[/name]
[name]Frederick[/name]
[name]Albert[/name]
[name]Carlton[/name]
[name]Leslie[/name]
[name]Everett[/name]

I tried not to repeat.

Thankyou! I like [name]Oscar[/name] and [name]Oliver[/name], also [name]Rupert[/name], [name]Francis[/name] and [name]Harvey[/name] which were on my list when naming [name]Sid[/name]… We also had [name]Rowan[/name] and [name]Morgan[/name] on that list.
I need girls name ideas too if you have any please! Thanks [name]Rachel[/name]

[name]Sidney[/name] and sister…
[name]Darcy[/name]
[name]Auden[/name]
[name]Beatrix[/name]
[name]Lucy[/name]
[name]Vivian[/name]
[name]Ivy[/name]
[name]Eve[/name]
[name]Iris[/name]
[name]Phoebe[/name]
[name]Violet[/name]
[name]Ruby[/name]
[name]Ramona[/name]
[name]Piper[/name]
[name]Olivia[/name]
[name]Claire[/name]
[name]Marlowe[/name]
[name]Imogen[/name]
[name]Frances[/name]
[name]Felicity[/name]
[name]Alice[/name]
[name]Flora[/name]
[name]Amelia[/name]
[name]Ruth[/name]
[name]Laurel[/name]
[name]Faith[/name]
[name]Harriet[/name]
[name]Edith[/name] (nn [name]Edie[/name])
[name]June[/name]
[name]Esther[/name]
[name]Rosemary[/name]
[name]Daphne[/name]
[name]Elinor[/name]
[name]Mabel[/name]
[name]Lillian[/name]
[name]Claudia[/name]
[name]Eliza[/name]
[name]Cordelia[/name]
[name]Hazel[/name]
[name]Dinah[/name]
[name]Evelyn[/name]
[name]Meredith[/name]
[name]Louisa[/name]

Thankyou mischa. I really like [name]Darcy[/name] - not sure if would be confusing with [name]Sidney[/name]? - and [name]Eve[/name]. I also like [name]Phoebe[/name], [name]Ruby[/name], [name]Imogen[/name], [name]Alice[/name] and [name]Hazel[/name].

Would love to here any more ideas you may have. Thanks [name]Rachel[/name]