me personally, I really enjoy anime like 86, aot, or Kabaneri of the iron fortress, simply js like animes where humanity is on the brink of extinction and fighting something. If you also like those types of anime, I recommend knights of sidonia. I havent fully completed it myself but its been really good so far. (Be prepared for deaths ok) The plot is that humanity is living on one massive like spaceship called sidonia, and there are these like monsters called ganna or gana. It's kind of similar to evangelion, as the cast use these mechs to fight off these creatures in space. Once again be prepared for some loss