Walgreens has 23 fewer stores than it had in April. Fear not, they are located in major cities like NYC or D.C., where they make up 50% percent of the pharmacies in those metro areas.

Cvs has 7,800 stores, but it will be getting about  1,700 from Target. (Target is still hiring in some areas!)
MPR news

Rite aid has 4560 stores
Business wire.