Coming in late here, but let me add my experience as a first-time Porsche owner and new club member:
Our local PCA is an excellent club and has been very welcoming to us and our 718 Cayman.
Any notion that owning a new Cayman or Boxter is a "problem" isn't even close to true in my experience. I've made a number of new friends this year as a result and I we have enjoyed spending time with all of them.
Our club has lots of diverse activities which really helps: there are concourse events, road rallies, auto-cross events, track days, cruise night/car shows, "destination" trips, tech lectures, charity events and off road events (really, more of a very mild cruise in approved dirt roads in local forests).
And the events are open to current members no matter what kind of car they own. It's not unusual to see a Miata or Mustang at some of our PCA road rallies or auto-cross events. And I was invited to bring our Honda CRV to their off-road event....no problem.
Literally all of these events also end up as social events too. So there is something for everyone.
It helps that our local PCA is one of the older US PCA clubs. We have a large and loyal membership. One of the founders of our club was Lake Underwood, who is pretty well-known in American Porsche lore.
I initially joined because I felt the road rallies would be another car-oriented activity that my wife and I could easily do together. We might do even more with our local PCA but we already spend 40+ days a year on the road at SCCA and vintage races. We've done two PCA road rallies so far and they were great fun.
But we have also done some of the PCA destination events to interesting places and well as a concourse, car show and club lectures (I just went to see Judy Stropus speak at one of our PCA lectures....I chatted with her for at least 10 minutes afterwards).