Here is a good start-
There are many other threads on this with a simple search though.
One of these threads on here has a grower near DC that says he doesnt spray and has great results… i dont remember his name though.
I am in WV and i pretty much have every sweet and tart cherry but im not in the DMV and i am only trialing them.
As far as sweet cherries go-- i picked up 2 bags of them at ALDI yesterday and they are fantastic!
I probably have many many hundreds of dollars in my trees but i doubt that i will ever grow as good of a cherry that i just bought 