I don't know. Just about anywhere would be trash for someone used to the luxuries and conveniences and facilities of the 21st century. It's a question of picking the least trash place. For me that would have to be south India. I have an outside chance of not having a language barrier if I wind up there. Plus the weather would be good. I don't want to go somewhere too cold. Not before the invention of central heating, certainly. The food would be agreeable and to my taste as well. It was a golden age for south India at the time. Imperialistic expansion, trade wealth flowing, great harvests with no famine, no pandemic outbreaks, a flourishing intellectual and cultural scene. I would expect to find a society that didn't have too many problems.
The only problem I can envision with medieval south India is that because its tropical there would be lots of insects. In a world before insect repellent and pest control were invented, that could be a serious lifestyle problem. The fukking mosquitoes alone would drive me crazy. Not to mention I would probably catch malaria or dengue fever or something from mosquito bites