TONS!! Like the veterans of the forum say, “You will only be alone if you choose to be. Just chat with a person in line (yes you will be in a line) and see it it is a fit. Are you with a charter? That is a way to see the same people each day. Have a beer chat and ask around. It is easy to find a crew.
BCD, did you sign up with a charter service.? I rode last year, my virgin ride, with a small team that had motorhome support. The air on 100+ degree days was nice. Riding solo this year with PBV. Looking forward to a different type of RAGBRAI experiences this year and hope our paths cross. You’ll have a great time!