I'm pretty impressed with my Böker Plus Subcom Titan. It doesn't cost that much more than the regular Subcom, but you get a titanium framelock, titanium clip, upgraded steel, and better thumbstud. The Sanrenmu 763 has also impressed me. It's considerably cheaper, but is very smooth, has excellent ergos, carries well, has a hollow grind that slices well, and a bottle opener. I find it a little more practical than the Subcom, and the fit and finish is that of a much more expensive knife.
There are also options like the Spyderco G-10 Dragonfly, and as you mentioned the Lava (which is discontinued, so the price will be high if you can even find one). However, if you're looking for a small blade, you might be best off checking out some of the traditional options from companies like GEC, Queen, and Case. The appeal of traditionals is the compact size and ease of carry, so if you don't need a heavy duty large tactical folder, they might be right up your alley.