The following is the list of Shaman King chapters that were released each month in Japan and which magazines they were originally published in. We also have pages 2020-2021 and 2018.
December 2019
Shaman King: The Super Star
Chapter 22 & 23
Released: December 17, 2019
Magazine: Shonen Magazine Edge January 2020 issue (少年マガジンエッジ 2020年1月号)
Extra: Shaman King: The Super Star on the cover
Shaman King: Red Crimson
Chapter 15
Released: December 17, 2019
Magazine: Shonen Magazine Edge January 2020 issue (少年マガジンエッジ 2020年1月号)
November 2019
Shaman King: The Super Star
Chapter 20 & 21
Released: November 15, 2019
Magazine: Shonen Magazine Edge December 2019 issue (少年マガジンエッジ 2019年12月号)
Shaman King: Red Crimson
Chapter 14
Released: November 15, 2019
Magazine: Shonen Magazine Edge December 2019 issue (少年マガジンエッジ 2019年12月号)
October 2019
Shaman King: The Super Star
On Scheduled Break / Hiatus
Shaman King: Red Crimson
Chapter 13
Released: October 17, 2019
Magazine: Shonen Magazine Edge November 2019 issue (少年マガジンエッジ 2019年11月号)
September 2019
Shaman King: The Super Star
Chapter 18 & 19
Released: September 17, 2019
Magazine: Shonen Magazine Edge October 2019 issue (少年マガジンエッジ 2019年9月号)
Shaman King: Red Crimson
Chapter 12
Released: September 17, 2019
Magazine: Shonen Magazine Edge October 2019 issue (少年マガジンエッジ 2019年10月号)
August 2019
Shaman King: The Super Star
Chapter 16 & 17
Released: August 17, 2019
Magazine: Shonen Magazine Edge September 2019 issue (少年マガジンエッジ 2019年9月号)
Extra: Shaman King: The Super Star on the cover
Shaman King: Red Crimson
Chapter 11
Released: August 17, 2019
Magazine: Shonen Magazine Edge September 2019 issue (少年マガジンエッジ 2019年9月号)
July 2019
Shaman King: The Super Star
Chapter 14 & 15
Released: July 17, 2019
Magazine: Shonen Magazine Edge August 2019 issue (少年マガジンエッジ 2019年8月号)
Shaman King: Red Crimson
Chapter 10
Released: July 17, 2019
Magazine: Shonen Magazine Edge August 2019 issue (少年マガジンエッジ 2019年8月号)
Extra: Shaman King: Red Crimson color page
June 2019
Shaman King: The Super Star
Chapter 12 & 13
Released: June 17, 2019
Magazine: Shonen Magazine Edge July 2019 issue (少年マガジンエッジ 2019年7月号)
Extra: Shaman King: The Super Star on the cover and pin-up poster
Shaman King: Red Crimson
Chapter 9
Released: June 17, 2019
Magazine: Shonen Magazine Edge July 2019 issue (少年マガジンエッジ 2019年7月号)
May 2019
Shaman King: The Super Star
On Scheduled Break / Hiatus
Shaman King: Red Crimson
Chapter 8
Released: May 17, 2019
Magazine: Shonen Magazine Edge June 2019 issue (少年マガジンエッジ 2019年6月号)
April 2019
Shaman King: The Super Star
On Scheduled Break / Hiatus
Shaman King: Red Crimson
On Scheduled Break / Hiatus
March 2019
Shaman King: The Super Star
On Scheduled Break / Hiatus
Shaman King: Red Crimson
On Scheduled Break / Hiatus
February 2019
Shaman King: The Super Star
On Scheduled Break / Hiatus
Shaman King: Red Crimson
On Scheduled Break / Hiatus
January 2019
Shaman King: The Super Star
On Scheduled Break / Hiatus
Shaman King: Red Crimson
Chapter 7
Released: January 17, 2019
Magazine: Shonen Magazine Edge February 2020 issue (少年マガジンエッジ 2020年2月号)