If you liked
Kaiko sareta Ankoku Heishi (30-dai) no Slow na Second Life
|
...then you might like
Lv2 kara Cheat datta Motoyuusha Kouho no Mattari Isekai Life
|
Guy has falling out with army for being weak, is expelled, but is later revealed to be OP, and settles down with his wife (encountered after exile) as a neutral party to the ongoing war. Extremely similar plot and overall vibes.
If you liked
Cross Game
|
...then you might like
Mix: Meisei Story
|
Same author, VERY similar characters, similar motivations, both about baseball and the journey to Koshien, and love/family drama. If you enjoyed one, you will almost certainly enjoy the other.
If you liked
Rakudai Kishi no Cavalry
|
...then you might like
Gakusen Toshi Asterisk
|
Both involve a school setting where students beat the crap out of each other for various reasons, with magic and weapons included. Practically the same premise, just different execution.
If you liked
Angel Beats!
|
...then you might like
Charlotte
|
Made by same people, and both have a similar idea (school/supernatural/romance). Both Charlotte and Angel Beats! are great anime, each in their own right. For Angel Beats!, I recommend giving it at least 3 episodes before deciding whether to continue or drop it.