This includes anime that has been announced, as well as manga series that have yet to have an announcement, but definitely will have one sooner or later. Personally, the top three right now are Apothecary Diaries (predicted to release around Oct 2023. highly, highly recommend), Sakamoto Days and Dandadan
It’s weird how much of a hit-or-miss MT is. I love it too; people call it “the grandfather of isekai” (that’s only partially true), but it’s from a more civilised time, when protags didn’t have a [INSERT YOURSELF HERE] sign on their necks.
Fair but spoilerless warning, if you don’t follow the manga, LN or WN: it’ll likely start with an event that a lot of people feel rather meh with. But it’s mostly a plot device.