For the past few years, I have carried a Buck 112 Slim Select. I think they are around $40 now, but when I got mine in 2019-ish I think they were like $30. I did change the factory pocket clip with a generic black aftermarket one that I got on ebay.
You can spend well over a $100 on Buck's "Pro" versions of this knife, but honestly, for everyday practical use the basic version is fine. It holds and edge, its lightweight, made in the USA, and if you did happen to lose it or break it you can always get another one. If I was working in an office or going anywhere that a pocket clip knife might be off-putting for some, I'd probably carry one of my smaller Case or old English-made penknives.
Long story short: some kind of utilitarian pocket clipped mid-sized lockback for all around outdoor carry, and a two bladed penknife in the pocket for "dressier" occasions.