Who to invest in?

I’m still debating whether I should pull for a new Elation team composition or try to E6 my Phainon. Right now my Phainon is E2S1, and I already have his best teammates: E1S0 Cerydra, E1S1 Sunday, and E1S0 Danhang PT. As for Cyrene, I currently have her at E0S0, so I’m unsure if I should pull for E2. I also have Yaoguang, but I’m still deciding whether it’s better to invest in a new team or just make my Phainon even stronger.

I don’t plan to invest in Remembrance, since I already have Hyacine E0S1, Evernight E0S0, and Cassie E0S1. For my other team, my Archer surprisingly handles most content right now.