Alive is a pretty good standard cheat client for beginners. Has all the most essential features configured out of the box. This is not to say that this is the best cheat client.
Argon is a rather strange and standard hacked client, which is also suitable for beginners and people who do not want to think about client settings. This cheat has already passed the test of time as it has been used by hundreds of players for a long time.
Skid is quite a good and full-fledged cheat client that has unique pvp functions. It will give you an edge over other cheaters.
One of the most advanced and modern hacked clients for Minecraft called Flux B15. This cheat has been considered the best option for hacking the game for many years.
Wurst is one of the very first hacked clients for Minecraft that came out quite a long time ago. Now you can use this client on version 1.12.2 to hack the game and use functions like killaura, aimbot and others.