Help a new & noob with team formation

I’m playing this for one month now and I’m trying to make the best out of what I have, for PVP I mean.
Any advice will be useful.
Thanks!

Bit late to this, but could you show all of your units? To do so import the screenshots one at a time (in case you tried doing it all at once). Looking at it like this, there isn’t much I could recommend since, at best a more low end Son family, but they would accomplish very little. (Even extreme units can help in terms of boosting other units).