 If you liked
Hai to Gensou no Grimgar
|
 ...then you might like
Saihate no Paladin
|
Both are a more "realistic" take on isekai, and while The faraway paladin's MC (Will) is quite powerfull, each enemy can still be threat and he can't allway win which help keep the tension hight, but unlike in Grimgar it's overall way more potive despite the rather dark world. Both serie are also really light on fan service with no harem and a very slow romance or no romance.