Need mc as lesser noble or bastard child of noble. It would be good if mc is transmigrated/reincarnated. Well not some arrogant young masters. Western background or European ambiance is preferred greatly. Can be fantasy too. Examples can be- The runesmith (on Royal Road)
There is this original novel that is pretty good, mc is not a bastard but he is considered as a wastrel, until mc take over the body. High-Class Mob but it is a pretty good story.
I reincarnated as the noble girl villainess but why did it turn out this way. Read it, it's very very good.....though the tags says shoujo it's actually more of a josei and MC whips people's ass if she ain't busy beheading her enemies.