Yaku Cheat Sheet (from r/ffxiv)
(lemmy.nerdcore.social)
Also this is a really helpful book https://dainachiba.github.io/RiichiBooks/
And I found this efficency trainer really helpful. https://euophrys.itch.io/mahjong-efficiency-trainer
Community for Mahjong, but specially the japanese variation (Mahjong Riichi)!
Where to Play?
Resources