If you are looking for specific books (write-ups) and the "Obmen" platforms are unavailable, these official and community-driven libraries are reliable alternatives: : The largest platform for licensed Russian e-books. MyBook : A subscription-based service with a vast catalog.
: It is recommended to use an ad-blocker or a secure browser when visiting third-party file exchange sites. Popular Alternatives obmen skachat knigu
: Use the internal search bar on the exchange site. If you are looking for specific books (write-ups)