Getting back into sailing as an adult?

I used to be on a C420 racing team in high school. I’m in my 30s now and it’s been a while since I’ve sailed. I’m also 6’8’’ so I’m a little big for smaller boats.

How is it possible to get back into sailing, preferably 420s or something similar again? I really miss the feeling.

I’m in Miami/Fort Lauderdale area.