Have a look at the statistics at:
http://gbamiga.elowar.com/#Features:Statistics
There are over 4500 games in the database with detailed information, but not all are playable yet. GameBase Amiga is still a work in progress. Belgarath spends a lot of time on configuring
and testing each game, to make as sure as possible that there won't be any nasty surprises when somebody else plays the games as used and configured in GameBase Amiga.
A lot of games that aren't configured for ADF yet can be played as either SPS or WHDLoad though and eventually everything will be configured.