If you don't enjoy the bustling markets, try this one: really off the beaten path, visited only by the locals.
Daily: 5 pm - midnight
More information https://www.travel.taipei/en/shop/details/590
Address Zhōnghuá Rd, Jhongjheng District, Taipei City, Taiwan 100
Coordinates 25°1'42.642" N 121°30'21.682" E