I would love to see XiangQi on Lichess or a suggestion for a good one. I suck at Chinese chess, but after learning it I was demolishing my friends from the headspace it gave me, the complexity really seemed to help me be a better chess player. I feel like I was an amateur "take as many pieces as you can and overwhelm the king" before and Chinese Chess turned me into a "sacrifice your pieces to position yourself better, value the pieces differently at different points of the game, and kill the king ASAP with pressure" player.

In Chinese Chess, I try playing against others and I know I probably lost in the first 5 moves often, I really suck at it, and in 10 moves I usually can tell I lost, I have never won once against a player online.