Find a novel that where mc (male /female) improve the life not just family also people around them , like improve the place where they born or live, it doesn't matter what genre but most this type is slice of life type, or what tags it is original mc , transmigration, rebirth, reincarnation, reborn, second chance. Business management, military type, farming , kingdom building, or any that interesting. If there harem try please the one with a nice one not just a sex type or that easy to fall in love.
Maybe: Goshujin-sama to Yuku Isekai Survival! Takarakuji de 40-oku Atattandakedo Isekai ni Ijuu Suru Chronicles of The Hardships of Komachi in The Sengoku Era
Back to the Sixties: Farm, Get Wealthy & Raise the Cubs simple romance, the mc improves the lives of almost all of her family members that haven’t wronged her.
Tensei Shitara Slime Datta Ken - mc builds a village/town for monsters Release that Witch - haven’t read it yet but heard mc builds a town for witches The Greatest Real Estate Designer - also haven’t read it but from the title you can deduce what’s up The Founder of the Great Financial Family - really good novel where mc tries to improve his family of 4 orphans’ financial situation in a fantasy world
I know only BL ones: reborn with an old enemy on the day of our marriage Investment life Epiphanies of rebirth
After The Vicious Cannon Fodder Was Reborn If you don't mind shounen ai genre, this one is pretty interesting. The protagonist plans to take over news and entertainment industry in china step by step. He also helps people around (adoptive fathers, adoptive grandfather, friends and fellow students and actors) to start their own business/carrier, solve old grudges and later on improve orphanage he came from.