I taught middle school (mostly 7th grade) for 18 years. I get it. (And trust me when I say 9th graders are LESS mature than 7th graders!!) Anyway, try using quizlet.live as a segue into breakouts. If you’ve never used it before, it’s like quizizz, but the students work together in random groups generated by the computer. Within the group, the answers are split among the students so they HAVE to communicate to each other to win. I’ve used it to ‘force’ kids to talk to each other especially when they are grouped with peers they don’t like. Life lesson in getting along build right in. Of course, I play again and randomize the groups so they aren’t stuck together too long.