H! My name is Nazz

I'm brand new to the board and totally fascinated with orchids general. I've got a question that's more like 20 questions. Sorry if the pics are sideways XD. first off:

This is my Den Phal var Compactum "Carney" and it seriously needs a repot out of the basket. It has 19 canes (3 of which are new and almost mature, growing in 3 different directions) as a mother plant with 2 Keikis 3 canes each and possibly more starting. it bloomed multiple times for me in October but now the leaves are getting yellow or already have fallen off and it's obviously overgrown! I can tell some of the roots are dead but a lot are still viable.

The one Keiki is tiny, and it's not showing and signs of getting bigger so Do I remove it? Or should leave it on?

The other Keiki looks not a big as the other came but like they could handle being reported, but it looks like the Keiki is making another Keiki!?

soooooo that's my boo! She's got a lot a lot going on.
should I take the Keikis off? And when I repot should I make divisions or just keep her all together? Right now she's basically in pure sphagnum moss, so that's what I think will work best for the mother plant. But with the Keikis having those Ariel roots what's the best way to pot or mount them so they take to a new media?
Any Info or advice you guys have on this orchid would be super appreciated.