These were the top 20 selling manga in September 2022, according to NPD BookScan:

  1. Spy x Family Volume 8 by Tatsuya Endo
  2. Chainsaw Man Volume 1 by Tatsuki Fujimoto
  3. Jujutsu Kaisen Volume 17 by Gege Akutami
  4. Spy x Family Volume 2 by Tatsuya Endo
  5. Demon Slayer: Kimetsu no Yaiba Volume 1 by Koyoharu Gotouge
  6. Spy x Family Volume 1 by Tatsuya Endo
  7. Jujutsu Kaisen Volume 0 by Gege Akutami
  8. Chainsaw Man Volume 2 by Tatsuki Fujimoto
  9. Spy x Family Volume 3 by Tatsuya Endo
  10. Dragon Ball Super Volume 16 by Akira Toriyama and Toyotarou
  11. Tokyo Revengers Omnibus Volumes 3-4 by Ken Wakui
  12. Chainsaw Man Volume 11 by Tatsuki Fujimoto
  13. My Hero Academia Volume 1 by Kohei Horikoshi
  14. Demon Slayer: Kimetsu no Yaiba Volume 2 by Koyoharu Gotouge
  15. My Hero Academia Volume 31 by Kohei Horikoshi
  16. Jujutsu Kaisen Volume 1 by Gege Akutami
  17. Chainsaw Man Volume 3 by Tatsuki Fujimoto
  18. Chainsaw Man Volume 4 by Tatsuki Fujimoto
  19. Berserk Deluxe Volume 1 by Kentaro Miura
  20. Chainsaw Man Volume 10 by Tatsuki Fujimoto

Source: The Fandom Post