Blankets, crib sheets, wipes, diapers, maybe a few articles of clothing so they can see your style, any baby gear you still need like stroller, car seat, crib, swing, walker, play pen. Grooming kit, Frida has a lot! Bottles and cloths for feeding clean up
If you do a registry through Babylist, they have a helpful “check list” of categories and items you might need
I’ve heard a few times to add postpartum items for yourself