Well, I made a list of these in another topic that specifically asked about novels, but since it applies fairly well across all media I'll copy-paste it here:
As I've mentioned several places, I tend to like lighthearted, slice-of-life works. That said, what I'm really looking for is the type of story where it feels like you're living life alongside the characters. So having a strong cast of characters is critical. Well, all it really means is that good characters are what I really look for in all stories. I also like stories with strong worldbuilding. This is especially important for fantasy stories; I like to read those for the feeling of adventure from visiting new places and learning more about them. This includes isekai, of course; after all, my favorite fictional work is The Chronicles of Narnia, which is overall really good at this sort of "adventure fantasy" and is technically an isekai, to boot. Speaking of isekai, though, I like seeing the various ways in which elements of our modern world mesh with that of a typical fantasy world. It's why I find stories like Realist Hero and Outbreak Company particularly fun. Overpowered protagonists in general are neither particularly interesting nor boring to me, but what is interesting is when the protagonist has a specific skill that he/she must manipulate in creative ways, and in doing so becomes "overpowered" in particular ways. Examples of this include Mixed Bathing and Gear Drive. One theme I particularly like to see come up in stories of all sorts is "family", especially that which goes beyond that of lovers. For example, I particularly like it when characters end up having to take care of children (see: Foll from Elf Bride and the first 3 volumes of For My Daughter). Of course, one can always just make something that is simply utterly hilarious. Sometimes all I need is a good laugh.