Help me figure out best cashback SUB for 5K spend

In June we’ll be spending 5K-ish plus for school expenses – one large payment.

Last year I did the Chase 95$ annual fee card for the $1000 cashback (that super awesome offer).

Any offers that are similar or coming up?

I ONLY want cashback, not points – so if it’s points, it has to be able to turn into cashback.

Any recommendations?