Golden Lane on 14 (also known as "Ada's") is a definite must!
Edgewood on Voak Road - they do not have as much as Ada does, but also carry some clothing, Carharts, boots.
Both are Mennonite shops. They will not be wearing masks. Lighting isn't great, but there are windows you can go closer to for natural lighting.
Are you staying on Keuka? Visiting wineries?
Robin