You did not mention a price range or his interest so I will share some of my overall always appreciated gifts for men:
A pair of really good tickets to a basketball game (or other sport) for their favorite team
A pair of tickets to a show that would interest him (comedy/music concert/musical/jazz brunch, etc.)
Watch - either a dress watch or a sports watch with features that relate to his interest
Anything from Mac if he is into tech things
a "Goodie Box" with lovers coupons, some rubs / oils that do different things, some chocolate covered strawberries, silk boxers, some adult toys all things you two can explore together!
A bottle of his favorite drink with a custom mug with his name on it - This can be very cost effective (depending on his drink of choice) and thoughtful.
high-end neck tie, cuff links, tie clip, business card holder are generally items I would give as a thinking of us, just because or we haven't been dating long enough.