It is unfortunate hope local companies like OSH Park get love too. The marketing of companies like JLC or pcbway whenever I post a hardware project on a website like Hackaday or Hackster always reach out to me to use em. Not that it would matter so many big makers on YT use em.
Is the cost and quality comparable to the Chinese options?
I can vouch for OSH Park. Wonderful company, nice people, and really good quality boards. Pads lift so much easier on the cheap Chinese boards that I think it alone makes it worth it to choose local manufacturers. The price is a bit steep for bigger boards but if you're working on a project that they are interested in, they provided financial support every so often. I've gotten a few boards sponsored by them!