I have a Kindle so I just send samples of books that I'm interested in. When I finish reading one a book I look through the samples and pick one to read, if I'm like it I buy and read it. Wash, rinse, repeat!
I do sometimes opt too look thorugh the Feedbooks Kindle guide and find a classic to read instead as well.
And for full disclosure, I only read a book or two a month at most, so I don't have the management needs of avid readers.