Finally finished Super 3 on my third try.
The first time I got stuck at Broly and eventually died due to some stupid placement on my part.
At this point, I switched out Godtenks for INT Trunks and it started to go better.
Second time I ran out of items at Merged Zamasu and he decided to super twice, so RIP me.
The third time, RNG was on my side and I ended up only using 1 of each item, and I could have probably saved 1 or 2 but I was playing it safe.
I don't want to imagine what it would have been like without SS3 Vegeta, he was by far the MVP with the tanking and clutch stunning, and Whis was great in helping me save items. Also, without Trunks lowering defense I would probably still be fighting Broly now. He also helped a lot with the Black arc bosses.
I'm curious to try an Extreme team, but I don't have Merged Zamasu, Omega or Broly so it might be a waste of time.
My team was similar to the Super team someone posted a few pages back:
VB x2
Super Vegito
Gogeta
SS3 Vegeta
Whis
INT Trunks