I'd really like to join one, in the bay area, Cali?
You can check out Meetup and the official Cuddle Party websites.
Check out San Francisco Cuddles https://www.meetup.com/sfcuddles on Meetup
https://www.cuddleparty.com/facilitators/?filter=true&country=US&state=CA
Eventbrite can also be a good place to look for these kinds of things.
Note that 'Cuddle Party' is a brand name in the USA and possibly elsewhere. Similar events are often called Cuddle Workshops.