Trev how’s it going!
Like you I’m new to the area but not to worry..
Fish are around.
Within dc there is the tidal basin which holds bass, stripers, snakehead and catfish. There are other species in there too but I believe those are the most targeteted.
The C and O canal is another great spot to which offers site fishibg for carp but also holds bass.
Burke lake is another sweet option , located in Burke Virginia. They have boats rentable for 45 with a trolling motor and the lake holds a strong bass, musky, walleye, and bluegill (I think) population.
Shanendoah is also a good bet for brookies, albeit about an hour forty five from dc.
Check out this article I wrote for TU about fishing around here
Tight Lines!
-Chad