Upcoming seletor help

So im around the beginning of endgame but am missing a lot of stuff. Im having a hell of a time deciding who should i pick. Its narrowed down to Kigiri, Morriden and Gwendolyn.

My Kigiri is a1 and i have one upolished and 2 polished SS. Im saving the polished for Ingrid hopefully one day. So i could get him to a3.

Morriden would help a lot with my shiny new hero Valara and seems to be pretty good by himself plus he looks awesome.

But Gwen is in the running because the game will not give me healers. Ive used my last 2 selectors on Eirlys and have went all on on Elowyns banner with no luck. I do have Nerissa, Ferrsi, Alyin and a1 Diaochan but no other legendary healers. Its definitely holding me back.

Its kinda crazy how bad my luck is with healers. For Legendaries I have 7 tacticians, 10 defenders, 17 mages, 19 marksman, 32 fighters but only 4 healers.