Please help suggesting a good team

Armageddon

I'm uncollected and after the redskull buff, 6.1.1 is too tuff, don't have so much resources to level up everyone, please tell the best 2 6* champs that are worth ranking up

and also please suggest what's the best team I can make

my team rn -
cgr 5* max sig ascended
iron man iw 5* max sig max ranked
sunspot 5* rank 4 max unawakened
jabari panther 6* rank 2 max
flexible slot

my rooster is as follows

HoadyOZ

You need a Villain for the Red Skull path, don’t you? All your team are Heroes. Rank up King Groot and he will do the job on Red Skull for you.

Armageddon

yes I ranked him up and cleared it , now on 6.1.4. thank you so much! can you please suggest the best team I can make