The Considered
The Obsession, Escalated
Whatever he has been deep in lately, going one level past where he stopped himself is the most useful thing you can do.
Find the next step up in his current interest, a proper session, a better piece of kit, a real class, and book or buy exactly that.
Vendor-ledEasy
The Personal
The Thing From Back Then, Done Well
A gift that references something specific from growing up carries weight precisely because he does not expect you to bring it up.
Pick a memory you both still quote. Rebuild it as an outing or a well-made object rather than a novelty gift.
Self-executedModerate
The Unexpected
One Full Day, Yours to Plan
Time is the gift adult siblings actually miss. A planned day with him is worth more than anything ordered online.
Block a day, plan two things he likes and one meal, and handle every booking without asking him to weigh in.
HybridAll in