A couple come to mind IMO:
- Iced_Monopoly for Masquerade Madness (disguiser games are always interesting and provided a good variety to the typical setups).
- Cryptonic for Politico (politics is always fun and there were some interesting elements with negative votes, anonymous votes).
- Helz for Instant Mafia (the game mechanic is probably one we should run more often for purposes of improving collective LYLO skills).