I was looking at certain games I want ported and comparing their cpu and sound listed on mame to match ones supported by FBA
Steel Gunner and Steel Gunner 2
CPU: M6809
Sound: YM2151
GI Joe - DONE
CPU: Z80
Sound: K054539
Taito Games when possilbe: Puchi Carat, Under Fire, Gekirindan, Darius Gaiden, Gunlock/Rayforce
CPU: 68EC020 (take your time working on that drive for FBA, I believe that it hasn't been made officially supported yet)
Sound: ES5505 - DONE
Gratia: Second Earth (eventually when the proper sound card is supported)
CPU: Z80
Sound: "YMF271" (take your time making FBA support that sound)
(I figured why my requested visco games (Storm Blade, Vasara, and Vasara 2) were unlikely: their CPU was V60, not supported by FBA as of now.) - DONE