How do you tackle large reading list? - eviltoast

I am looking for suggestions on how to tackle a large reading list (currently at 556). A big part (maybe smaller than I think) is a collection of Ann Rule, Stephen King and Star Trek novels (currently just the Pocket TOS and movie novelizations). The way I go about things is to just read whatever I am in the mood for. Makes it hard for me to keep a consistent reading progression. I do read by publication date.

I want to hear how others pick what to read. My current idea is to take a chunk of one selection and alternate with others in between.