I would maybe take a chance on a few and mull them over for a while even if none jump out at you. Classic names don’t tend to jump out at you but creep slowly in while you’re mulling them over 
Pick five from the suggestions that you think you might like more than the others and think about them for a couple of days, try them out in combos, look up namesakes and meanings and stories linked to the name, maybe watch a film where it’s featured. See where that gets you!
I know from experience that it works differently with classic names, you need a new perspective and more time. It’s how I fell in love with [name_m]Walter[/name_m], which I see in your signature. I’d never even considered it until I would hear it every week because of Fringe. And then a new, delicious chocolate called [name_m]Walter[/name_m]'s Almonds became a staple in family get-togethers and now I quite like [name_m]Walter[/name_m], it suddenly has a lot of positive associations for me.
Also, have you considered that maybe your boys style is different from your girls? It’s common enough, and if you find yourself not considering names because they don’t fit your style, it’s something to think about and maybe explore.
Another thing to think about is whether or not you’re excluding some names because you have a girls name that’s similar and already on the list ([name_u]Everett[/name_u], you have both [name_f]Eva[/name_f] and [name_u]Evelyn[/name_u], [name_m]Joseph[/name_m], you already have [name_f]Josephine[/name_f]). Since there seems to be no problem coming up with more girls names, maybe you should allow some of these boys names (if there are any) to ‘win’ in order to balance out the lists.
Some more suggestions, hoping to avoid repeats:
[name_m]Colin[/name_m] (I always think of The [name_f]Secret[/name_f] Garden with this one ^^)
[name_m]Philip[/name_m] (I love the idea of [name_u]Flip[/name_u] for a nickname)
[name_m]Phineas[/name_m]
[name_u]Laurence[/name_u]
[name_m]Peter[/name_m] ([name_m]Peter[/name_m] Rabbit, [name_m]Peter[/name_m] [name_m]Pan[/name_m]…)
[name_m]Samson[/name_m] (means ‘son of the sun’, I love [name_u]Sunny[/name_u] or [name_u]Sonny[/name_u] for nicknames)
[name_m]Samuel[/name_m] (love [name_u]Sam[/name_u] too, this one is so sweet!)
[name_m]Asher[/name_m]
[name_m]Hector[/name_m]
[name_m]Hugh[/name_m] (or [name_m]Hugo[/name_m], means ‘mind/soul’!)
[name_u]Francis[/name_u]
[name_m]Ivan[/name_m] / [name_m]Ivo[/name_m]
[name_u]Asa[/name_u]
[name_m]Conrad[/name_m]
[name_m]Anton[/name_m]
[name_m]Ansel[/name_m]
[name_m]Heath[/name_m]
[name_u]Amory[/name_u]
[name_u]Robin[/name_u] (just gorgeous!)
[name_m]Roland[/name_m] (this has a lot of interesting stories attached to it!)
[name_m]Clement[/name_m]
Would also like to second [name_m]Isaac[/name_m] ([name_m]Ike[/name_m]!), [name_m]Miles[/name_m], [name_m]Vincent[/name_m], [name_m]Silas[/name_m], [name_m]Julian[/name_m], [name_u]Claude[/name_u], [name_m]Lucian[/name_m], [name_m]Lewis[/name_m]/[name_m]Louis[/name_m], [name_m]Willem[/name_m], [name_m]Abel[/name_m], [name_m]Arthur[/name_m], [name_m]Edwin[/name_m]/[name_m]Edmund[/name_m], [name_m]Albert[/name_m] and [name_m]John[/name_m].