Who are good English romance writers (any type of romance)?

I love reading books of romantic genre, so I would be grateful if you recommended for me some good writers that I can read books for. What I meant by any type of romance is that it could be normal or paranormal, includes vampires or dragons, it also could be adventurous or thriller, the only condition is that it should involve romance. You know, you can also recommend books if you like but the most important part is that it includes perfect grammar usage (I chose some random romance books before and the grammar skills of that writer were poor)