now i'm making $28-30 a day with 800MH in eth, is there any coin alternative that would be more profitable?
It depends on your video cards. If you have Nvidia 1060-1080 or AMD 470-580 video cards, then it’s easier for you to continue mining Ethereum. If you have modern video cards, then study the information about dual mining Ethereum+Tone and Ethereum+Alephium.