Where to sell E-Books?

Friend came tonight, he bought 14 e-books that are worth from hundred to few, in various niches. Mostly self-improvement.

9-5 guy..

Of course I took them all. Some books are really popular, but I was lazy to dig deep.

What now? Where to sell them? I can run any ads, but obviously I am not official seller.

I can reduce pricing, sell via DM maybe. But where? Share some gem with me. Thanks.

Ebooks are free everywhere out there, if you did not write it yourself it is mostly useless to try and sell them. They turn up on download sites if they are popular.

There are lot of stores to sell E-books

Maybe try ebay?