Which team to gear first, how far to gear them

HK666

With Padme unlocked, I can now start gearing GR as a viable team. Problem is, I need to finish my Sep droids team, and my Geo team could also use be starred up. So, I once I finish gearing my Sep droids, I'll focus on GR or Geo. I asked my guild which they would prefer, but I didn't really get an answer. As far as I know, Geo's are better for DSTB now, but Padme is the stronger team overall and LSTB is coming.

So, which should I gear up first? Padme, or Geos

Also, how far should the Sep Droid team go? They got me Padme, but it was pretty much just grevious and his unique zeta + aoe.

Right now I'm thinking - g13 zzGG (done, cept for the zeta lead), g11 zB1, g12 zB2 and Magna, g11 droideka

Can this pass the sep droid combat mission? If not, how much farther does the team need to go. What about p4? (b1 isn't 7* yet, so haven't tested any)

Last question- once I get to the teams, what are GR and Geo needed zetas? Just from reading around a looking at the kits, it looks like

Both of Padme's, GK's, maybe Ani/Ahsoka
Alpha unique... and that's it?

My roster, if it matters- I'm almsot done with b1 and Ani, then it's full throttle on Alpha while Spy comes in from the fleet store. I'll probably use Clone Wars Chewie as Padme's 5th when r2/c3 aren't available, even tho that means gearing him... Might star up Barris instead.

GR
https://swgoh.gg/p/189794965/characters/?f=Galactic+Republic
Seps
https://swgoh.gg/p/189794965/characters/?f=Geonosian
Geos
https://swgoh.gg/p/189794965/characters/?f=Geonosian