Lava Lake is still fishing well, and is also seeing good to very good callibaetis hatches and nymphing. I remember in the 80’s Lava Lake was the 1st place I ever fished a (callibaetis) nymph under a strike indicator. I was with Chester and we kicked our old round float tubes from the boat ramp almost to the NW corner of the lake. The Milkshakes at the South Twin Resort after that were so worth it, but to have the 1st experience of a bobber down in a lake was freaking awesome. 
Balanced Leeches and Chironomids and Damsels will round out what you need most of the time. Well, as I say this, duh, Ants and Beetles here too.