Forum: Story Recommendations

I am looking for stories where the mc becomes somehow lucky to find a genie lamp or making a pact with devil acquire powers and a harem

You could start with "Genie Chronicles" by Joe Brolly...

Pars001 has his story "A Guy and his..."
https://storiesonline.net/a/Pars001

Heck, just go to advanced search and use the term genie. When I ran that search, I got four pages of stories. Several of which I really liked.

You might also want to try searching for djinn.

Check out these

Matt and Sophie's Genies.