Several years ago, I purchased 20 small surgical brushes at a discount store for 10 cents apiece. They are soft and gentle but take a lot of scrubbing to get all the grime from my hands but are better than any other hand brushes I have purchased. Will last me the rest of my life. (The children hate to hear me say that and I say it a lot lately about any big purchase.)
My favorite brush is a nail brush from Fuller Brush. I’ve had it for many years and it still works well. I’d actually like to buy another, but haven’t looked to see where I can purchase. Somewhere around here, I might have an old catalog or mailing label. I hope they are still in business.