Reccoms please?

Lookism, there's only hints for the mc's partner but only hints. Their main focus is on action and story progression, you also won't get bored of it since the arcs are all pretty interesting to read and a lot of them end at a cliff hanger so you'll definitely look forward for the next chapter

Fair warning though this doesn't apply much for the first few chapters since they were still going for a school life story, but later chapters are in the dark organization kind this time

I think these don't have romance, or at least it's not with the MC

https://www.mangago.zone/read-manga/soul_cartel/

https://www.mangago.zone/read-manga/good_night_world/

https://www.mangago.zone/read-manga/anz/

https://www.mangago.zone/read-manga/niflheim/

https://www.mangago.zone/read-manga/shokuryou_jinrui/

https://www.mangago.zone/read-manga/saike_mata_shitemo/

https://www.mangago.zone/read-manga/houseki_no_kuni/

https://www.mangago.zone/read-manga/when_night_falls/

https://www.mangago.zone/read-manga/i_dont_want_this_kind_of_hero/

https://www.mangago.zone/read-manga/flow/

https://www.mangago.zone/read-manga/katekyo_hitman_reborn/

https://www.mangago.zone/read-manga/black_haze/

https://www.mangago.zone/read-manga/jagaaaaaan/

https://www.mangago.zone/read-manga/city_of_dead_sorcerer/

https://www.mangago.zone/read-manga/end_and_save/

https://www.mangago.zone/read-manga/cuticle_detective_inaba/

https://www.mangago.zone/read-manga/reincarnation_no_kaben/

https://www.mangago.zone/read-manga/tokyo_aliens/

Elecced is a good one mostly action maybe some blushing but I think that's all. so far 200+ chapters. Good for superpower kinda stuff with organizations but has lots of funny moments.