Sanrenmu Land 900 series, e.g. this 911. I don't know if this thing has been discontinued or what, but I am seeing it less and less available. It's such a winner. Used to be $21.50, now I'm seeing it above at $25, which is still excellent for this knife. It's got 3.4" of 12C27 steel, grippy G10 scales, great thumb ramp jimping, easy liner lock, a fairly close copy of the Sebenza design, robust feel, great heft, and great action. Feels great in hand. Perfect size if you're me.

The one above is being sold by some rando brand I've never heard of and comes with a pull through sharpener branded with that brand. But the knife is still the Land brand by Sanrenmu. Just throw the sharpener in the garbage.

As always, the Ontario Rat 2 is an excellent knife for anyone. I've seen it as cheap as $27ish.