This is quite a broad question really. Do you mean male romance authors who write for a female audience? Male romance authors who write for a male audience? Or male romance authors who write for a gay audience, because there are ones for all of the above. Whether or not they are all good I cannot say because I haven't read all of them, but there are definitely good ones. Probably the most famous one of them all is Nicholas Sparks in my opinion. I don't think that you can call yourself a fan of romance novels if you haven't read his 1996 novel, The Notebook. Sparks also wrote Message in a Bottle, A Walk to Remember, The Rescue, A Bend in the Road, The Lucky One, Safe Haven, The Best of Me, and See Me. I know that some readers and critics find Sparks to be a little too sappy and sentimental when it comes to romance, but I prefer that over the smut that some authors try to pass off as romance these days. All I know is that Sparks has written more romance novels than Jane Austen and most have been best-sellers. His work has also been very successful when turned into movies, which is more than a lot of other romance authors, male or female, could say.