Gifts and Things I (22NB) can do for my boyfriend (24M)?

I have a boyfriend who is always so kind and doing things for me (refusing to let me pay for dates even when I get ready to, sending me really cute messages and posts, writing poems etc) and I really want to do something in return.

We’ve been together around 4 months and I do things like cook for him (with him always helping out) but would love to do something more.

I know he seems to think I’m doing enough but I want to be able to show how much I care for him and appreciate everything he does.

This is also my first proper relationship so the situation is very new to me. Any suggestions would be greatly appreciated.