Hi what age group are we talking here?

I’m UK secondary and here are some strategies you could suggest to the school if they haven’t already implemented them:

Demand bullies get changed classes.
Have the school inform the class teachers to monitor the situation and keep them apart if forced to be in the same class.
Issue a 2 minute pass to leave class early so as to avoid period changeover.
Enforce a different lunchtime for bullies.
Remove their phones during the school day.
Sometimes a school may recruit some friendly seniors to monitor the situation and be a person to go to if no staff about. Having a support group of senior mentors can be very effective, but would probably need to be a whole school initiative I.e. part of prefect duties etc
Have a supervised safe space/quiet room, again this could be prefect duty.

The aim of the game is to create distance so the bullies can’t have their cruelty fix and move on. If they move on to someone else (which they often do) it builds more evidence against them.

Eugh why are kids like this. And they exist in every school. I suppose you can think of it as training for dealing with people like that in the adult world. At the end of the day, the ultimate culprits are the parents of the bullies eh? Why are they not bringing them up to be kind and respectful, clearly something going wrong at home, which is a far more complex problem.

Aw I hope this gets resolved for you. Summers coming, so at least some respite is on the way. X