Looking to connect with group ride in Central Park - or other fast-ish rides

Hey y'all. I'm sorry if this question has been asked a million times in this sub. I tried searching, and I did check the sidebar as well.

I'm in town for the month of March, I have a loaner road bike from a friend, and I'm hoping to keep my training going for two events I have in April: a 90-mile fondo, and a circuit race. Basically I just want to get some miles in, and see NYC by bike...

A friend told me I should connect with the training ride in Central Park. It seems like a nice loop there, and I'll definitely be hitting it solo, but connecting with a group would be awesome.

I didn't see a Central Park ride in the sidebar links, I don't think...

Any other tips on active group rides would be awesome.

Generally, I am riding for exercise/sport, and I like to go fast. Fast, for me, is like 20mph on the flats.

I was living in L.A., and I rode with the Mixed Race thursday nights, which was a fast follow-the-leader group ride around the city.

I am based in Harlem for the month...