First question: What uses?
My answer will be significantly different depending on your use.
I prefer traditional folders from GEC. Tons of patterns, all "old tyme" patterns. Just so classy and interesting. Case/Bose collabs fit in the higher end of your price range too.
For the 250 you can even get into custom slip joints.
For one handed opening. I recommend other knives.
For fixed blades, that is a pretty decent price spread as well. All kinds of great options depending on what you are looking for.
Busse is on my list in the small fixed blade at that price range, as well as a double handful of custom makers on here.