Personally, I could never sit down and watch a dubbed over drama. I even have trouble sitting through cdramas because of the dubbing. I much rather hear the original actors do their thing. However, my sister has recently wanted to try Asian dramas, but she has a reading disability and is very slow at reading because of it. She can't keep up with subtitles unless she pauses the video after most sentences, which is very frustrating for her, so she's only seen one or two dramas to date.
I know Netflix has dubbed a few dramas here and there, even if it's not a significant amount, and a lot of the best dramas out there will probably never see an English dub, but if anyone knows of any decent dramas that have dubs that I could recommend to her, I'd love to hear them!