Tacoma Musical Playhouse is a good local option if you want an evening indoors after museums, waterfront walks, or Point Defiance. The theatre focuses on musicals and accessible stage productions, with a community feel rather than a touring Broadway polish.
It is worth adding when the schedule lines up with your visit. For travellers staying outside Seattle, it can make Tacoma feel like a city with its own cultural calendar, not just a day-trip museum stop.