I have been playing on cheatbreaker for like a year now and cheatbreaker is one of the best clients i have ever used
Lunar Client - An all in one Client side anti cheat built by the same people who made CheatBreaker.
OpenInv - Open anyone's inventory as a chest in real time! Works with offline players!
Badlion Client - Custom minecraft 1.7.10, 1.8.9 and 1.12.
LabyMod - LabyMod - An all in one Minecraft PvP Modification to increase your ingame experience
MultiMC - Overview: MultiMC is a free, open source launcher for Minecraft, managed by Forkk13and peterixxx...
5zig Reborn - 5zig Reborn is a modification tool for Minecraft version 1.8.9 to 1.15.2 that is renovating the things for you to play the game.