Is there someplace I can find vegan donuts in Cincinnati?

Try the Findlay Market-Cake Rack Bakery

it seems there may be some places in Cincinnati to get vegan donuts, although I've never had them. You might want to check out someplace like Park + Vine downtown or Sidewinder Coffee in Northside. Sweet Peace Bakery is an all vegan baked goods company, but they don't have a store nor a set menu. You can, however, find some of their products at local coffee shops and Park + Vine. There may be some other options, but it seems that vegan baked goods in Cincinnati are a cottage industry and very hard to find.