Q.Have 2 potted Hibiscus. Get sun and watered when needed. A lot of flowers. Lately see very small white bugs (they fly) on leave
s. Also a few leaves curling and some with small holes. I’ve read about spider mites. mine are white, very small & fly when you shake leaf. Otherwise plant is doing great & producing a lot of flowers. What do you recommend? Tried taking pics but bugs are so small they don’t show in pic.

From your description, its sounds like your hibiscus have a "white fly' infestation.
https://www.planetnatural.com/pest-problem-solver/houseplant-pests/whitefly-control/