There are also some local restaurants that frequently have metal/rock shows. Joe squared & holy frijoles are some I’ve heard of

Horse is a great bar! Gets very busy on weekends but live music & the bartenders are sooo nice! If you’re into punk bars Ottobar is amazing, has pool tables & decent drink selection. La food Marketa (just outside of Baltimore) has great food & drinks. The zoo also has a nighttime beer fest- not sure if it’s going on while you’re visiting but definitely worth checking out