I am looking for Mc that used an innovative way to make money. Like Lorist in Tales of the Reincarnated Lord he made a clothing shop and got a lot of money from it. and it would be better if the series is focused on kingdom building. Note: please do not suggest xianxia titles where the mc sells pills or poisons people and blackmails them for a cure
LOL, innovative huh. Sure, that whole story is the MC basically scamming everyone, and GOD do I love reading it.
My suggestion go play Ni No Kuni Miracle Throne is about an inventor in a xianxia world going back in time where he rakes in the dough and builds a kingdom by making stuff like lamps, canned food, guns and AI. So yeah makes a lot of money and builds a kingdom. If you can read raws or MTL then Noble Emblem might be something to read. Another suggestion is I Have a Mansion which is basically about a guy hopping back and forth between out world and fallout so he brings food to the fallout world to rake in money and kingdom build while he brings future technology to our world and starts a company and eventually starts building his own country in our world as well.
Maybe something like: I Shall Survive Using Potions! (MC's cheat is to be able to create any potions w/o making them) Saving 80,000 Gold in an Another World for Retirement (MC's able to transport between 2 worlds, jack-of-all-trade) Netooku Otoko no Tanoshii Isekai Boueki (similar ability as 80,000 Gold, antique trader by profession)
I Have a Mansion in the Post-apocalyptic World maybe? He makes lots of money, while the way may not be really innovative, it's quite interesting.