Gift ideas for a 19 year old boy?

He’s my boyfriends brother who has been staying with us for the last 2 months. Don’t know him very well but definitely want to get him something, nothing crazy. I haven’t been around teenage boys since I was a teenager so Im a little lost.

Likes:

Old school RnB

Heading to college for basketball

Has ears pierced

Stranger things

Working out

Peanut butter (lol)

Does that eyebrow slit shaving thing that teenagers do