Finally done. What now?

Finally finished up act 8 today. Glykhan was fun, and was finished in 5 revives. I ended up pulling sunspot and kindred as my 7 stars. I used the generic on photon (She crushes fights now btw). I’m 1 t6cc away from r2ing my ham. I see that i gotta rank up 2 7 stars to r3. What should i start with to do this? I saw that act 9 should have quite a few t4 alphas, is it worth it to wait and do that, for the first r3. I am attaching pics of my roster too, in case any suggestions can be given.