All DC games use 6 buttons or less...
And the ones that use a digital stick as opposed to an analog one have arcade ports the run on other emulators, so no.... not many DC games out their that are suitable.
Use Makron and Demul and get the arcade games for those emulators. It'll be slim pickings for dc games after that.
Same goes for the psx.... most of your good digital games are stuff like cps2 era fighters, ect.... they are all emulated in mame. Lots of unemulated lightgun games on the psx though.
And of course games designed for the home console generally play terribly on a mame cab. You are meant to have longer gameplay sessions, the control layout is designed for a gamepad, often making it hard to pull off some moves, ect.