Update: This Chinese Journal of Space Science has journal articles in English and it has a lot of technical info and it's incredibly good kuish. Thank you @LarryTeds. Woo. (side note: with this under the belt, there are probably other journals like this, so search something like Chinese Journal of Space Technology might get you a hit.)
Aside from that honestly there is a lack of technical information in English on Chinese spaceflight. Occasionally there are conference papers which can cover a lot of good info in English, but they are relatively rare and not helped by stuff like this. There is a significant amount of good analysis done on Chinese spaceflight, most notably by the US military however generally this is lacking in technical info.
In regards to twitter, I generally use this search as a baseline search for Chinese spaceflight stuff.
I know that you're asking for English sources, but because most of the good info on Chinese spaceflight is on Chinese website and is where I source most of my info from. Chinese spaceflight journals in my experience provide useful information, though website functionality can sometimes be lacking. (note; there is a generally an English translated abstract to help as well and I mean the abstract is really the only important part of any paper anyway)
For reference, in regards to Queqiao orbit, the Journal of Deep Space Exploration has a couple of papers on it, for example: this paper.
Forums are temperamental and a trek to navigate, but can be good source of info and graphics and NSF forums and Spaceflightfans forums are my go to ones. This Chinese military forum has a lot of good info, but requires an account to get access to media in posts and hyperlink technology, which in turn requires a Chinese phone number, which is difficult to source. (I tried using online Chinese phone numbers to no avail) This forum has a lot of technical information and papers, but it's a bit weird to use and I think it has an economy.
Also can we quickly take a moment to remember GBTimes. Some of Andrew Jones better articles were located in that beautiful website. (you can still access it with wayback machine, so if you find a GBTimes article you want to read use that). In general, Andrew Jones is my go to China spaceflight news person. He posts articles on most of the major space news websites.
In regards to Chinese news sites, Xinhua post news on Chinese spaceflight events in English. The Weibo for the Chinese Lunar Exploration program covers most deep space news.
I also rate Spaceflightfans.
There are several others; generally a google search for key terms is better than individual sites, especially for the most individual blog type posts like this
Empty forks builds good rockets.