I would recommend 3D LUT Creator https://3dlutcreator.com/. It is not very easy but very powerful. And if you need an easy one they have mobile version 3dlutmobile http://3dlutmobile.com/
You can solve your task wit 3D Lut Creator easily . Oleg Sharonow have video tutorial about it
. And you can check software on the official website https://3dlutcreator.com/