What team without Grievous should I farm and gear to unlock 7 star Padme in 1-2 months (next return)

On, Grievous, he's actually worth spending shard shop currency, he's actually very good now once you finish gearing him and when we get the g12 finishers it will be even better. I decided to go all in on him and he's now g12+4 with zeta on unique, and I don't regret investing in him one bit.