The following list might help someone who is interested in companies that host self-published authors' e-books on websites and apps. These resources are professional, so by all means start clicking away! While you're at it if you find this list helpful, please show support by purchasing a copy of my e-books as well as other self-published authors. Thanks!
List of eBook and Book SitesTxtr ebooks
Tolino e-book reading
Flipkart (They also have a free app, see here.)
Barnes & Noble
Axis 360 (Baker & Taylor)