I would think a Skyrim mod would very much fit Kingdom Come: Deliverance. Due to the huge open map thing. Of course probably don’t change the story because that would just be a modding nightmare. However maybe the skins, textures, and music? Also with this game’s fighting system the combat would be way better than Skyrim’s combat.
Also I thought maybe a For Honor mod? All it would need is some re-textures of the armor and weapons. Maybe even try to add the 3 factions and their homes? However that may be just too much.