One thing I love about fishing is that everyone knows someone who fishes. Even if you don’t fish yourself, you most likely have a friend, cousin, brother, or uncle who loves to fish.
If you are someone looking for a gift for an angler, start by trying to prompt them into talking about fishing (it shouldn’t be hard). Pay attention to what kind of fishing they like to do; Saltwater or freshwater? Lures or bait? What kind of species of fish do they like to catch most? This should give you some idea of how to personalize their gift, and I’m sure it would mean a lot to them.