Hikaru Genji Plan/Wife Husbandry
https://tvtropes.org/pmwiki/pmwiki.php/Main/WifeHusbandrySummary: a story where someone raises their perfect boyfriend/girlfriend from childhood and marries them later on. Recent example is "how to raise an alpha you love" but reverse of the trope is fine.
Basically, recommend any mangas with this trope.
