I like 4 player chess also! Coach Fee
Favorite Chess Variant

Chaturanga my love!
Going back in time, up to -- at least -- 1500 years ago...
Instead of criticizing the Elefants, learn how to move the Elefants:
"On the weakest pieces you can find the deepest strategy of this game!"

Metamachy is one of the best chess variants that I have ever played
(1) This chess variant can be enjoyed and played for over 100 moves before resigning or agreeing to a draw
(2) New tactical possibilities that does not exist in orthodox chess due to diversity of pieces and their non-overlapping movements (for example in Trice's chess and Grand chess the chancellor just overlaps the movements of knight and rook and the archbishop just overlaps the movements of knight and bishop)
(3) Due to plenty of (distinct) pieces on the board, each of them with different strength, even if a player is down in material, that player will have more opportunities to exploit opponent's mistakes and win back material than in orthodox chess (when there are too many pieces on the board)
(4) The choice of the pieces are perfect for this chess variant to be enjoyed on a 12×12 board, for all of them to co-ordinate together well to checkmate the opponent's king (unlike Gigachess played on a 14×14 board and Terachess played on a 16×16 board which have too many corporals, many pieces have overlapping movements and few powerful pieces are sufficient enough to checkmate the opponent's king)
Players can read the rules of this chess variant, play with AI online or try out two player online games over hereby: https://jocly.jcfrog.com/joclymatch/gamespanel.php

@ramanvis1988 .. Interesting, I'm a bit scared to play on such a big board but I'll try a couple of games. The site you linked is great, there I can train myself in XiangQi and MakRuk, playing different level bots (or humans if someone wants).
I especially like this concept you wrote: << (3) Due to plenty of (distinct) pieces on the board, each of them with different strength, even if a player is down in material, that player will have more opportunities to exploit opponent's mistakes and win back material than in orthodox chess (when there are too many pieces on the board) >> and I think it also apply to Chaturanga somehow.
However I don't want to bother all people here with my passion for Chaturanga so I started a specific thread where I would like to share opinions, tactics and strategies: https://www.chess.com/forum/view/chess-variants/i-love-chaturanga

See also www.pychess.org and www.musketeerchess.net, each of them containing different classes of chess variants from each other and from https://jocly.jcfrog.com/joclymatch/gamespanel.php.
Unlike www.chess.com and www.lichess.org, chess variants over thereby are less popular and human players will occasionally come to play for a rated game. Most of the time anyone ends up trying out unrated games with AI, although AI there is quite strong especially level 8 and there are 8 levels of AI difficulty to play with any chess variant over thereby (unlike www.jocly.com demonstration page at https://mi-g.github.io/jocly/examples/browser/control.html?game=metamachy-chess which has only weak AI of single difficulty level to try out with for all of two player strategy board games available over thereby).
At www.musketeerchess.net, players can read the rules of each of type of chess variants that are available over thereby or play with AI online over thereby but not try out two player online games over thereby.
What is YOUR favorite? Mine is.......................Atomic