I'm a big soul land guy but can't find any novels that have similar power systems. I am less interested in the cultivation but rather gaining abilities from beast or things you have killed. Not very interested in generic "he has gluttony power" or "he can absorb others cultivation". I have read Divine Throne of Primordial, which I think is kinda similar.
Did you read the other related novels? there are also other seasons/sequels of it, like Doulu Dalu II, did you check them out ?