You didn't tell us where you live (generally, of course, this is the Internet).
In the Tampa Bay area, there are some good poly groups. In the San Francisco Bay area there are some poly groups.
Try searching Meetup.com for polyamory and your zip code. If that doesn't work.. try variations of poly.
Realistically, some areas have fewer people, and therefore fewer polys.
I'm starting with just myself also... have met some amazing people... in interesting relationships. I'm just experimenting as I go to see what's the best way to do all of this.-- without really having goals.
The polys have some excellent advice about communication and relationships.. that would be good for ANYONE.
Hang around... there's lots to learn here. Just remember, we're all at different places in the journey... so be gentle with your fellow travelers.