Hi and welcome to the forums!
There are 2 regular open groups:
Open Game Thursday where they play a lot of different one shots in a lot of different systems.
And on Fridays there is Adventurer League:
You can find general information about it here.
Basically it is standardised (you can play with your AL character anywhere in the world), organised D&D 5E play.
We meet every Friday and it is a really lovely, diverse community. Both experienced and new players are always welcome. We only ask that you announce yourself if you plan on coming so we can make sure we have enough DMs.
See this thread to get an idea.