[name_m]Hi[/name_m] there.
I’ll do my favorite, and then any close seconds or thirds. 
feminine-
Isa-Isabella
Bee-Phoebe
Sab-Sabrina
Fi/Fifi-Fiona! [name_f]My[/name_f] sweet puppy…we call her Fi sometimes. She’s a bit too butch to be [name_f]Fifi[/name_f] though.
I like [name_f]Josefina[/name_f] nn Fi.
Via-Vivian
Lola-Louisa! Also, [name_f]Eloisa[/name_f] or [name_f]Lorelei[/name_f]
Ronni/Ronnie-Rosalind or [name_f]Rosamund[/name_f]
Leni-Eleni…or Elena…I actually like [name_f]Elena[/name_f] more, but maybe [name_f]Eleni[/name_f] makes the most sense
neutral/either-
Theo-Theodore or [name_f]Theodora[/name_f]
Ren-Laurence…not sure for a girl
Tru/True-I don’t know. I guess [name_m]Truman[/name_m] is okay for a boy.
Fin/Finn-I love [name_u]Finn[/name_u] on its own for a boy, but also [name_m]Finnian[/name_m] or [name_u]Finnegan[/name_u]. For a girl, Finnuala nn [name_m]Fin[/name_m] is so cute.
Sol-Solomon for a boy, but I think [name_u]Shiloh[/name_u] could work too. I also don’t mind [name_u]Shiloh[/name_u] for a girl. But then there’s [name_f]Soleil[/name_f] as well.
masculine-
Bat-Bastian! [name_u]Or[/name_u] [name_m]Sebastian[/name_m]
Lex-Alexander
Cas/Cass-Caspian…Caspar & [name_m]Cassius[/name_m] are good too
Jules-Julian. I love [name_u]Julian[/name_u]! [name_m]Julius[/name_m] is handsome also.
Raffy-I love [name_m]Rafael[/name_m], but [name_m]Rafferty[/name_m] is cool.
Win/Wyn-I love [name_u]Win[/name_u] for a boy. [name_m]Ewan[/name_m] nn [name_u]Win[/name_u] is my favorite, but maybe a stretch. [name_m]Winston[/name_m] nn [name_u]Win[/name_u] is adorable, but I also really love [name_u]William[/name_u] nn [name_u]Win[/name_u].
[name_f]Hope[/name_f] this helps. 