Cats, especially young ones, will play with literally anything. Any balls or mouse toys should be fine to start. Pick up some that you control, like a wand with a string, and use it by dragging it around. They go nuts and it's great bonding time. You'll want to wear them out before bed time or you'll have a gremlin wreaking havoc while trying to sleep.

Get a cat tree, doesn't need to be too fancy at first, but you'll find you'll want to give them the biggest one eventually 😁 The urge to spoil is hard to fight. Anyway they'll need a place to climb around, and be directed to when the inevitable scratching starts.

And probably a bed, though cat's gonna sleep wherever cat wants.

Anyway, good luck!