Where to put the emblem?

I have been building depth in my 5* team such that I have my core team all up to 7emb. I have 5 established reverse formation teams (all tank variations)


Alliance works off Green/Red/Purple tanks so now want to push my team power up.

Which team to focus on seeing I only have the below embs to hand

My hero roaster is as follow so any suggestions on team tweaks happily received

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