RunningintheUsa.com
is a great site to find races. I don't know exactly where you are, but I've had good experiences at the PR race series races
https://potomac.enmotive.com/ in Northern VA.
Also, now that it's spring a lot of elementary schools hold 5ks that are open to the public. It's a good way to find a race that is VERY local (maybe even your neighborhood school that you can walk to!) and support your local school.