Your regular social circle- type of cyclists?
The cyclists that I've socialized regularily ...or at least a few times per year both on road and outside of cycling....are long-distance tourers, work commuters and ex-randonneurs. One of these cyclists was a bike courier for a year.
At this time, I haven't clicked yet with a racer or triathlete or duathlete.
I do know several who have done full marathons...2 sisters and a brother-in-law.
I've been cycling nearly past 17 yrs. Since living in Vancouver, I haven't joined any regular cycling group / club since living in Vnacovuer ....and all honesty, right now, I don't want to yet feel hemmed in my personal schedule when my present work commute during week is so time-consuming and I get home late...which leaves only weekend for breathing, creative time to do as I please.