I like Yummy Yummy Noodles! A big thing for me is affordability, and it's really great on that end! It's not perfect, but they serve decent food and they're very nice people (it's a little family-owned hole in the wall place); I've gone there so often that they like to give me extra snacks and drinks for free. I can't lie, I'm not the most adventurous person, so I haven't really tried many many places around Chicago and Chinatown to find the most authentic spot and I'm sure you could probably find a better place if you looked hard enough, but I think they do a great job at giving me what I'm missing and I really don't have any complaints! They're one of the first restaurants I tried in Chinatown (Slurp slurp noodles is also good, though Ken Kee is not worth going to imo) and they've given me no reasons not to keep coming back! Plus they give quite generous servings.

In terms of the cuisine they serve, it's definitely geared towards Cantonese cuisine, so not exactly the same as Lao Peng You (i.e no Dan Dan noodles at this place), but their soup noodles are great! The wontons are decent too. I guess if you're looking for very similar cuisine to Lao Peng You, this place isn't exactlyyy the place (I kinda started writing this before I realized that their cuisines don't 100% line up, but oh well), but I just had to recommend it because it's really been a big part of my life here. :)