Batman: Sword of Azrael #1 (1992) - First appearance of Azrael
Batman: Sword of Azrael #2
Batman: Sword of Azrael #3
Batman: Sword of Azrael #4

Read Knightfall Saga here.

Azrael #1 (1995)
Azrael #2
Azrael #3
Azrael #4
Azrael #5
Azrael #6
Azrael #7
Azrael #8
Azrael #9
Azrael #10
Azrael #11
Azrael #12
Azrael #13
Azrael #14
Azrael #15
Azrael #16
Azrael #17
Azrael #18
Azrael #19
Azrael #20

Azrael Plus The Question #1 (1996)

Azrael #21
Azrael #22
Azrael #23
Azrael #24
Azrael #25
Azrael #26
Azrael #27
Azrael #28
Azrael #29
Azrael #30
Azrael #31
Azrael #32
Azrael #33
Azrael #34
Azrael #35
Azrael #36
Azrael #37
Azrael #38
Azrael #39
Azrael #40
Azrael #41
Azrael #42
Azrael #43
Azrael #44
Azrael #45
Azrael #46

Azrael #1,000,000

After Azrael #46 the series is retitled Azrael: Agent of the Bat.

Azrael: Agent of the Bat #47
Azrael: Agent of the Bat #48
Azrael: Agent of the Bat #49
Azrael: Agent of the Bat #50
Azrael: Agent of the Bat #51
Azrael: Agent of the Bat #52
Azrael: Agent of the Bat #53
Azrael: Agent of the Bat #54
Azrael: Agent of the Bat #55
Azrael: Agent of the Bat #56
Azrael: Agent of the Bat #57
Azrael: Agent of the Bat #58
Azrael: Agent of the Bat #59
Azrael: Agent of the Bat #60
Azrael: Agent of the Bat #61
Azrael: Agent of the Bat #62
Azrael: Agent of the Bat #63
Azrael: Agent of the Bat #64
Azrael: Agent of the Bat #65
Azrael: Agent of the Bat #66
Azrael: Agent of the Bat #67
Azrael: Agent of the Bat #68
Azrael: Agent of the Bat #69
Azrael: Agent of the Bat #70
Azrael: Agent of the Bat #71
Azrael: Agent of the Bat #72
Azrael: Agent of the Bat #73
Azrael: Agent of the Bat #74
Azrael: Agent of the Bat #75
Azrael: Agent of the Bat #76
Azrael: Agent of the Bat #77
Azrael: Agent of the Bat #78
Azrael: Agent of the Bat #79
Azrael: Agent of the Bat #80
Azrael: Agent of the Bat #81
Azrael: Agent of the Bat #82
Azrael: Agent of the Bat #83
Azrael: Agent of the Bat #84
Azrael: Agent of the Bat #85
Azrael: Agent of the Bat #86
Azrael: Agent of the Bat #87
Azrael: Agent of the Bat #88
Azrael: Agent of the Bat #89
Azrael: Agent of the Bat #90
Azrael: Agent of the Bat #91
Azrael: Agent of the Bat #92
Azrael: Agent of the Bat #93
Azrael: Agent of the Bat #94
Azrael: Agent of the Bat #95
Azrael: Agent of the Bat #96
Azrael: Agent of the Bat #97
Azrael: Agent of the Bat #98
Azrael: Agent of the Bat #99
Azrael: Agent of the Bat #100

Batman and Robin Eternal #9
Batman and Robin Eternal #10

Batman and Robin Eternal #15
Batman and Robin Eternal #16

Batman and Robin Eternal #24
Batman and Robin Eternal #25
Batman and Robin Eternal #26

Detective Comics #950
Detective Comics #951
Detective Comics #952
Detective Comics #953
Detective Comics #954
Detective Comics #955
Detective Comics #956

Detective Comics #958
Detective Comics #959
Detective Comics #960
Detective Comics #961
Detective Comics #962

Detective Comics #969
Detective Comics #970
Detective Comics #971
Detective Comics #972
Detective Comics #973
Detective Comics #974

Detective Comics #976
Detective Comics #977
Detective Comics #978
Detective Comics #979
Detective Comics #980
Detective Comics #981

Justice League Odyssey #1 (2018)
Justice League Odyssey #2
Justice League Odyssey #3
Justice League Odyssey #4
Justice League Odyssey #5
Justice League Odyssey #6
Justice League Odyssey #7
Justice League Odyssey #8
Justice League Odyssey #9
Justice League Odyssey #10
Justice League Odyssey #11
Justice League Odyssey #12
Justice League Odyssey #13
Justice League Odyssey #14
Justice League Odyssey #15
Justice League Odyssey #16
Justice League Odyssey #17
Justice League Odyssey #18
Justice League Odyssey #19
Justice League Odyssey #20
Justice League Odyssey #21
Justice League Odyssey #22
Justice League Odyssey #23
Justice League Odyssey #24
Justice League Odyssey #25

Batman: Urban Legends #8
Batman: Urban Legends #9
Batman: Urban Legends #10

Arkham City: The Order of the World #1 (2021)
Arkham City: The Order of the World #2
Arkham City: The Order of the World #3
Arkham City: The Order of the World #4
Arkham City: The Order of the World #5
Arkham City: The Order of the World #6

Sword of Azrael #1 (2022)
Sword of Azrael #2
Sword of Azrael #3
Sword of Azrael #4
Sword of Azrael #5
Sword of Azrael #6

Detective Comics #1076
Detective Comics #1077
Detective Comics #1078
Detective Comics #1079
Detective Comics #1080

Detective Comics #1084
Detective Comics #1085
Detective Comics #1086
Detective Comics #1087
Detective Comics #1088
Detective Comics #1089