Try these:
Empress of Another World
http://www.mangago.zone/read-manga/empress_of_another_world/
As You Wish, Prince
http://www.mangago.zone/read-manga/as_you_wish_prince/
La Dolce Vita Di Adelaide (personally don't like it this much since the story just got dragged on one conflict)
http://www.mangago.zone/read-manga/la_dolce_vita_di_adelaide/?Yu9E
You can also try this one, although it's just nearly completed-- like for the next 6 chapters or so..
Why are You Doing This, My Duke?
http://www.mangago.zone/read-manga/why_are_you_doing_this_my_duke/
Lastly, this one is completed but not transmigation manhwa, but the setting is medieval
Light and Shadow
http://www.mangago.zone/read-manga/light_shadow/
Thank you so much!!!!!
Hello! Can anyone recommend me any completed transmigration manhwa or manhua? All ive seen now is ongoing and its frustrating me