I don’t know where you live, but starting your Meetup Group would be a great way to meet other crossdressers.
Meetup will do all of the marketing and advertising for you. And potentially dozens, if not hundreds of other crossdressers will gladly join the group.
As the group’s Organizer, you would get to meet everyone who joins.
There are also a variety of national weekends sponsored by crossdressers. These conventions can be packed with hundreds of crossdressers from all over the world. Just Google “Crossdresser Conventions or Crossdresser Shop” to find them or organization.
Another option would be to attend an LGBT support group. You can look for one near you by searching online.