Themes like these 2 shows that I just watched.. magical powers.. good Vs bad.. amazing one on one battles... Another friend recommended one called Demon Slayer to watch next.. also Overlord, not looked into either of them yet. Will see what's available on Netflix first as it's just easier to watch.
I like Overlord, but it lives in a genre called isekai, which is basically "die, wake up in another world, often a game world or similar". I like the genre personally, some people don't, I normally have an isekai on the go.
Demon Slayer is good but it's boosted by it's animation quality a bit, without ufotable animating it I'd not rate it as highly as I do, but it's a visually stunning piece of work. If you wind up liking
Demon Slayer they also made
Fate/Zero which can be watched by itself and has the same great animation.
Consider also some other options (this list is by no means exhaustive):
Fullmetal Alchemist Brotherhood - This is widely regarded as a very good anime indeed. Chill with the Elric brothers as they hunt for a way to use their alchemy against the laws of nature to restore what was lost.
Death Note - Think this was my first real anime, it's about a high school student called Light who finds a note book called a Death Note. Whoever has their name recorded in the Death Note will die. it's a little older animation wise but should still stand up OK.
Kill la Kill - This is pure over the top ridiculousness, but I love it. A girl called Ryuko Matoi is seeking vengeance against the killer of her dad wielding half a pair of scissors as a sword, and wearing her life fibre outfit which is far more revealing than it should (or needs to) be.
My Hero Academia - This is a shonen which is typically aimed at a slightly younger audience (teens) but this is made so well, that it's hard not to like it. The animation is crisp, the mechanics of the powers are interesting, and the hype it builds is real.
Madoka Magica - Magical girls battle witches with their side kick Kyubey, which is a cat like creature. This is one not to be missed imo.
Saga of Tanya the Evil - This is another isekai like Overlord, what happens when you reincarnate into the body of a teenage girl on the frontlines of a WW1 era Germany, where instead of planes you have mages and magic rifles? This.
That Time I Got Reincarnated as a Slime - isekai again but this time we're a slime. Just rolling about doing slime things. This is a fun one rather than serious but I enjoy it all the same.
I'm sure some of the other regulars here will have some ideas or suggestions as well!
(I like Aria the Animation, FMP Fumoffu etc for that, especially after something like "Saikano", "Now and then, here and there" or "Grave of the Fireflies"**).
, I do love it though
