Which mutant to rankup next ?

Avin

i am attaching my mutant roaster, i am confused on which 3rd mutant i should focus next. I dont have t4cc enough to rank up 5* colossus. I got a 3->4 rankup gem for 4*, so thinking of promoting another mutant. Really appreciate your suggestions.

Thicco_Mode

archangel, especially if you can awaken him