I can give you a couple of reputable Chinese companies that sell direct to customers online. BTLOS makes excellent carbon rims and wheels. I now have 3 sets of carbon wheels with Bitex hubs that work great. I chose 25mm internal width, hookless with no spoke access holes, so no rim tape required. Yoeleo makes bike frames and integrated handlebars that are priced well and work well. I have two Yoeleo R12 frames that I bought vin 2022. Back then, my custom painted pearl white R12 cost $1215 with seat post and integrated bar/stem, delivered.
btlos.com
https://www.google.com/search?q=yoel...obile&ie=UTF-8