For Christmas 2018 I gave my brother a Marttiini Handy knife. It’s got a very comfortable handle and he uses it as a utility blade.
For my brother’s 15th birthday I gifted him a Fallkniven S1 Forest Knife with three sheaths (factory plastic, factory leather, and a custom kydex sheath). Every time we go for a hike, camping, hunting, or just bushcrafting he takes his S1. He absolutely loves it.
I’ve recently given him my Buck 112 that features a drop-point 5160 blade. I only edc fixed-blade Bucks (either a 119 or 124), and he’s always been fond of that 112. Figured it would suit him better than it suits me, and he’s been carrying it non-stop since I gave it to him.
For Christmas 2018 I gifted my dad a Buck 102 Woodsman. He takes it with him on all his mountaineering/rock climbing trips.
Sometime in 2020 I gave my dad a Leatherman Juice CS4. He keeps it in his cycling pack, and it’s helped with bicycle issues on several occasions.
For Mother’s Day 2019 I gifted my mom a Marttiini Lynx, which she uses in the kitchen all the time.
Sometime in 2020 I scored a great deal on a bundle of five vintage Marttiini belt knives. They were in poor condition, but I restored them and modified a few, and gave all of them to my mom. All the Marttiinis are her preferred kitchen knives now.
For Mothers Day 2021 I gifted my mom a custom engraved walnut-handled Opinel 6, which she keeps in her purse alongside a Mora Eldris, which I also gave her.
I’ve gifted a good friend a Great Eastern Cutlery H20 clip point, along with a custom kydex sheath for it.
I’ve gifted another friend a Cold Steel Recon Scout in O1.
I’ve probably given a couple other knives that I’ve forgotten.
If you can’t tell already, knives are my “fall-back” gift option

When I don’t know what to give someone, I at least know that I can choose a quality knife to give.