Which 6 Stars to Upgrade?

Tuhon_K

Which 6 stars should i focous on? Im currently on Act 8 and have a surplus of awawkning gems. I need one or 2 suggestions per class and my main roster includes doom , cgr , sunspot , silk and jug

Envi1

Magneto will help a lot in act 8, Shang chi as well for the Behemoth boss