Non-identified albums

I still have about 100 non-identified albums. Some of them are strange compilations, some of them are bootlegs from the darker side of the internet.
But there are still some well-known albums and artists I bought as a CD or at the iTunes Store but not recognized in Roon. I have tried, while identifying, to change the name of the album to find more or better relevant data, but that dit not work.
(So I also have 2 artists called Jon Anderson, ELP and so on.)

Any suggestion on what to do?

These are the unknown albums:

  1. Jon Anderson -Open
  2. Aphrodite’s Child - Lost tapes of Orio
  3. Eric Clapton/Otis Rush - Get Plugged in! Montreux
  4. Cuby & the Blizzards - King of the World
  5. Emerson, Lake & Palmer - Pictures at an Exhibition live
  6. Hasse Fröberg Musical Co- HFMC
  7. Genesis - The first songs live
  8. Genesis - Live at the Roxy
  9. Golden Earring - Biggest hits
  10. Kraftwerk - The Catalog
  11. Freddie King - Live at Ebbets Field
  12. Nick Magnus - Straight on till morning
  13. Marathon - The first run
  14. Marillion - F*ck everybody and run (2016)
  15. Maryson - Master Magician I
  16. Pallas - Wearewhoweare
  17. Porcupine Tree - Out absentia
  18. Ton Scherpenzeel - Heart of the Universe
  19. Jimmie Smith - 100 Original tracks
  20. Straxvalty - Barracudas
  21. Symmetry - To Divinity
  22. Tee Set - She likes weeds - Collected
  23. Louise Tucker - Best of
  24. Stevie Ray Vaughan - Best little blues house in Texas
  25. Rick Wakeman - The Myths and legends of king Arthur (2016)
  26. Zuffanti - La quarta vittima