It’s a bit of a drive from Union square but if you are interested in Asian noodles, IQ Kitchen (formerly China City I think?) in Newton is an interesting whole-in-the-wall when you are nearby. The decor has been vastly improved from when they first opened (now they actually have two chairs that match!) Their rice noodle soups in the style of Guizhou, which means thick round rice noodle with spicy punchy (adjustable based on preference) broth and lots of pickled vegetables, and various braised/fried protein (our favorite being the chicken and pork).
South of the Clouds in Brighton center also does Chinese rice noodles albeit the Yunnan variation. I’m not overly impressed with it, but it’ll do in a pitch when I’m craving some hot soup action.
MDM Noodles is a solid Northern (wheat) noodle place that’s been discussed plenty here and on the other forum.
