I don't know what you want to do exactly, but if you wanted to make something "arcade style", and you just named "fighters" there, I would make it full of Neo Geo stuff.
I will load it with every KOF, specially KOF99, some Last Blade 2, Garou Mark of the Wolves, Metal Slugs, long etc., and of course my all time favorite Money Idol Exchanger (don't judge me).
Now if you are more specific on the type of game perhaps something else, I don't know if it still fits what you want, but I would add Castlevania SOTN, Rondo of Blood (yey, with the CD soundtrack), Soul Blade, Rival Schools, etc.
From the SNES I will surely throw in Megaman X and Metroid 3 (but it doesn't really fit the arcade style)..
From Genesis perhaps Castlevania Bloodlines, Comix Zone, Sonic 2, etc... Meh, so out of ideas today.