Autumn is a proven cheat client that can be used quite easily on absolutely any server. Just keep in mind that cheats are now really easy to use.
WolfRam is a top hacked client that is placed on the same position as Flux. Compared to other hacks, this cheat is incredibly popular and has much wider functionality and capabilities.
One of the most popular and favorite cheats by players is WWE for Minecraft 1.16+. The reasons are huge functionality and reliability. The client includes over 65 powerful cheats that work in both single and multiplayer versions of the game.
Flux B12 was developed a long time ago, but it still works, so you can completely safely use it even for new versions of Minecraft 1.16.2, 1.16.3 and so on. Simple and user-friendly interface, incredible purple design and a combination of power and performance will give you a really large number of server victories.