First of all, I strongly recommend you pick ONE team and complete it. At the moment you have parts of 4 solid teams: Padme, Empire, JKR and CLS. It's generally better to stick with one team until it's "complete". Note that the definition of complete will change as time goes by. At your current level, all G12 with all needed zetas would qualify for any of the teams mentioned.
Of those, I would recommend doing whatever you need to do to your geos to get that 7th star for Padme. You don't really need Alpha's lead zeta; it's not awful, but it's not "must have" either. Having said that, applying that zeta and gearing the bugs to G12 would get them to the point where, properly modded, they could complete the Wat mission in DS geo. This could help you get into a solid guild.
After that, getting Padme and Co. to G12 with zetas would be my next step. Both of Padme's and Ahsoka's are quite useful. Ani's is less so, but you'll want it anyhow. Until you unlock General Kenobi, I'd go with GMY and R2 for the rest of the squad. GK and 3PO are better, but will take time. CAT is also great, but will likely take even longer. ALL of those toon's zetas, (except for GMY's lead: avoid that one), are valuable, whether in a Padme squad or elsewhere. GMY will end up with JKR eventually and R2 will likely end up somewhere else, but for now, they'll do.
JKR and Empire are also valid choices. JKR needs all 3 of his zetas and the squad needs Jolee's and GMY's as well. The squad's fifth is likely to change over time. I use HODA with both of his zetas.
The Empire squad needs zetas on Palpatine's lead and Vader's other unique. Thrawn's is serviceable, but not required. If you go Empire in the near future, you'll likely use Tarkin, (no zetas required) and someone aside from Stormtrooper as fifth, (though he will serve in the interim). Piett is an excellent choice for the long term; TFP for the short term as he helps your fleet for Tarkin's zeta challenge.
CLS is a great squad, but you'll need Raid Han, Chewie, Chewpio and either 3PO, R2 or, at the very least, Old Ben. Lots of zetas required there and you have a long way to go to acquire the legendaries needed.
I don't know what your guild situation is. If your not getting regular Han and GK shards from guild raids, find a better guild.
Hope this helps to start.
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