any medical manhwas? little to no romance if possible?

The divine surgeon is pretty good in my opinion. But it dose not take place in modern time.

Trauma Center if you haven't read it. The only downside is it's incomplete

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

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

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

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

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

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

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

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