Day 5 of playing, getting through early content— any team advice?

Hi everyone! I am back again with some more questions. I am on day 5 of playing, and i am working through the dokkan story content, and i have been evading most of the event content except for daily/weeklies and some awakening for my top units.

Here are my UR units that can move to LR status. Are there any particular units that i should be prioritizing that im not? Any team comp recommendations as i get to higher tier content?

Also, is there a recommended order for pursuing more difficult content?

Thanks for any and all advice!!