So you want to go to W&M or some other smaller school where you’ll live in proximity to fellow students, meet them in student clubs or maybe run into them out on weekends, get to know them in class. I’m not seeing how this will work out all that different from the way things are now.
Also keep in mind that when frosh show up on campus they typically know few if any other students and are looking to form a circle of friends. By the time you transfer as a junior they’ll have been pals for two years with a shared history and won’t necessarily be looking to meet new people. It’s not that it can’t be done but many transfers say it takes extra effort to meet people and build friendships.
Most colleges have free counseling available for students, often including workshops for those wanting to improve social skills. I don’t see any harm in talking with a trained counselor and getting their advice.