If you join GWRRA and some of the others, they may do organized runs. In the past, some of us on this forum have got together for what we called the West Coast Wingnuts Jamboree and Mosquito Roundup. Its been a couple of years. I had hoped on trying to put one together this year, but with the event scheduled for Colorado later on, it might be too many for one season.
Someday perhaps we can do a day or weekend ride though. If you click on the word "oregon" in my profile, a map of oregon will load, and you can see the members we have here. A fair number, and the ones I have met are all good people.