A Buck 110 for about $30 is hard to beat. If you have Amz. prime, shipped free helps.
I have ended up giving away parts of my collection to my brothers and sister, in the past. Included are a Boker Top Lock, a Kershaw Titanium Talon, Buck Titanium mini folder, Spyderco Harpy, CRKT KISS. If I was going to go out and purchase for the purpose of giving away, I'd look into The Rat I or II folders, Ka-Bar Dozier folders, Spyderco Tenacious, or some of the Byrds or Kershaws in that price range, as most folks would be tickled with the quality, compared to "gas station" knives.
If you have a bit more cash, the Griptilian is a great higher-end knife at a lower end price with lots of options on color and blade shape/size.
You also need to check out A. G. Russell knives for the traditional crowd (lower to mid-range) or GEC (upper end), if you want to go that way.