OK, so as the title suggests, I need some help/suggestions on who to focus on roster wise.
Here are my 6* R3-5 currently.




My 7* R1-2 currently


And now, the rest of my 6* champs, in which I know I have some bangers in here, but not sure if it's worth ranking any at this point.








I know, it's alot of information but I figured I would rather have too much than not enough.
Do I have any glaring holes in my roster that I'm overlooking?
Any champs I should take up even if they're currently in the 7* pool?
I play in a retired alliance, so war defense and such isn't an issue. My main focus is bg's, completing older story content (just 8.1.6 to go for exploration, then all of act 7 and 6 to explore.
I currently have 300 t2 dust, will have 500 when i do my last path of necropolis for 2 more ascension.
For my selector after necropolis, I'm still leaning heavily towards a KM dupe, due to having a skill rank 2-3 gem from necropolis completion.
Tldr: need some rank up advice based on my current progression level and main interest in bg's.