Do any of them teach how to play?

Check out RealMahJong – there’s a website and an app. You play with the card. https://realmahjongg.com/

You might try mahjong4friends. Not sure if that’s what you’re looking for. You can play on their website or app.

I’m just learning to play mahjong. It was suggested that I play in my spare time on an app on my phone. But the ones I found are not really like the real game. It’s just a matching game. Any recommendations?