I have played a couple, but I only really stick to platform fighters.
In Nickelodeon All-Star Brawl, I main Garfield. But I also enjoy Reptar and Helga.
In Rivals of Aether, I'm mainly a mods player. I primarily main Kris (Deltarune) and Chara (Undertale), but I play a ton of others. If mods are unavailable, I can also play Kragg and Pomme pretty well, and I enjoy Elliana even though I'm awful with her.
In Brawlhalla, I main Yumiko, Cassidy, and Scarlet. But I also play Sidra, Rayman, Barbara, and Plague Knight sometimes.
I also strongly enjoy Super Clash Bros., even though it's still currently in a very buggy demo state. I play everyone in that game.
In Nickelodeon All-Star Brawl, I main Garfield. But I also enjoy Reptar and Helga.
In Rivals of Aether, I'm mainly a mods player. I primarily main Kris (Deltarune) and Chara (Undertale), but I play a ton of others. If mods are unavailable, I can also play Kragg and Pomme pretty well, and I enjoy Elliana even though I'm awful with her.
In Brawlhalla, I main Yumiko, Cassidy, and Scarlet. But I also play Sidra, Rayman, Barbara, and Plague Knight sometimes.
I also strongly enjoy Super Clash Bros., even though it's still currently in a very buggy demo state. I play everyone in that game.
...I haven't been able to play ANY of those since my hard drive got busted, but hopefully I'll get around to resolving that soon.
As for mains, I main Squigly for Skullgirls and Ryu for SF. I mainly use Workshop characters for Rivals.