After taking a read into the ClientCast module by PysephDEV, I would say it’s just up to preference. I’ve used the Raycast Hitbox 4.01 module before and had no problems. I’m not too experienced with ClientCast, but they seem very similar.
You can test both with 2 different tools to compare the simplicity of the setup, configurability, and any other factors that might come into how you want your games hitboxes to be adjusted.
Just reading through some of the documentation on ClientCast, it seems to be a little more complex but might be a better fit for your game.