'Truth be told, if there was an easy method of sorting, cataloguing and selling a 1,000+ albums, I would have pulled the plug years ago.'
You may list and sell your record collection on this site (If it is easy enough for you)
https://support.discogs.com/hc/en-us/articles/360004051893-Quick-Start-Guide-For-New-Contributors
https://support.discogs.com/hc/en-us/articles/360001562473-How-To-Sell-Music-On-Discogs