The best gift guides are not lists of products. They are lists of questions about the person you are buying for.
Match the gift to the relationship
What works from a sibling reads as strange from a colleague. Before deciding what to buy, decide how much closeness the gift is allowed to claim — that single question rules out most of the bad options on its own.
Buy for the year ahead, not the day
A gift tied to something they are about to do — a course starting, a move, a first year of parenting — keeps working long after the wrapping is gone.