Hey, looking for a certain novel where it's like the Epiphanies of Rebirth, mostly on stocks, investments etc. Whereas MC got a rebirth and then he got a certain thing where ML's future soul is there. ML helped MC realise his potential that were buried by the era. It has a reform setting, not entirely sure. MC is also orphan but not true at the end. He also met the present ML's young self during his endeavour of selling stuff etc. 

This is another BL rebirth novel. It's fully completed, the translations are a bit off, but at least it's still understandable. Feel free to check it out if you like and yeah, enjoy! 
https://www.flying-lines.com/novel/reborn-as-my-best-buddy-s-rival-in-love