Comment by Seiisaysyo on Home page

@Seiisaysyo hard-core leveling warrior

@Me2you  thxx

@Seiisaysyo  
eleceed 
the greatest estate designer

@Seiisaysyo Try :
Ajin
Apocalypse no toride
Blame!
Bokko
Drifters
Dungeon reset
Koukoku no shugosha
Kumo desu ga nani ka
Ni xi ba mo wa**
Omniscient reader's viewpoint
Player that can't level up
School of the malice
Skeleton soldier failed to protect the dungeon
Tate no yuusha no nariagari
Tensei shitara ken deshita
Tensei shitara slime datta ken
Tondemo skill de isekai hourou meshi
White epic

@Potato But there's the cat-and-mouse play between Lloyd and queen Alicia, as well all side-characters romances.

Last chapter of Player that can't level up is suggesting there might come some romance.

But there are still series such as How to live as a bootleg healer or Black bullet or Psycho-Pass etc.