There are plenty of really good UK Bowyers, on here like Dell, WillS.
I have personally bought a couple of Aidy Hayes elb. They are well made, shoot well, and are reasonably priced, though the price has increased since I bought them, but they are still reasonable. The longbow Shop usually has a good range, but is pretty bare now, I guess due to Covid related issues.
There was another really good English bowyer, Mike Roberts, of Eclipse longbows. I'm not sure if he's making them anymore as his website is down. He went down the fibreglass path, made some sweet bows of that type, but before that he was an all wood bowyer of great talent.
He had a real flair for using combinations of exotic wood.