Clones books
Here are 48 books with a lot of clones, starting with Mickey 7, The House of the Scorpion and Beta.
Mickey 7Edward Ashton
The House of the ScorpionNancy Farmer
BetaRachel Cohn
Never Let Me GoKazuo Ishiguro
True ColorsKaren Traviss
Order 66:Karen Traviss
Six WakesMur Lafferty
SparesMichael Marshall Smith
Mirror DanceLois McMaster Bujold
Double IdentityMargaret Peterson Haddix
Brothers in ArmsLois McMaster Bujold
CyteenC.J. Cherryh
ReplicaLauren Oliver
Where Late the Sweet Birds SangKate Wilhelm
Hard ContactKaren Traviss
The Lost GirlSangu Mandanna
Kil'n PeopleDavid Brin
The Lord of OpiumNancy Farmer
The OriginalsCat Patrick
Triple ZeroKaren Traviss
The DuplicateWilliam Sleator
7th Son: DescentJ.C. Hutchins
ImitationHeather Hildenbrand
Amy, Number SevenMarilyn Kaye
Orphan Black, Vol. 1John Fawcett, Graeme Manson
In Search of AndyMarilyn Kaye
Mickey7 Series, 2 Books Set, Mickey7, Antimatter Blues, by Edward AshtonEdward Ashton
My MurderKatie Williams
The Third TwinKen Follett
The SimilarsRebecca Hanover
The Klone and IDanielle Steel
501stKaren Traviss
The Possibility of an IslandMichel Houellebecq
Star Wars Episode II: Attack of the Clones: NovelizationPatricia C. Wrede, George Lucas
The Ophiuchi HotlineJohn Varley
The Clone RepublicSteven L. Kent
The Clone CodesPatricia C. McKissack, John McKissack
Afterschool Charisma, Vol. 1Kumiko Suekane
Project CainGeoffrey Girard
Falls the ShadowStefanie Gaither
Pursuing AmyMarilyn Kaye
ReplicationJill Williamson
ReplicaLexi Revellian
EmergentRachel Cohn
Secret CliqueMarilyn Kaye
And the Two Shall MeetMarilyn Kaye
Brave New GirlRachel Vincent
Afterschool Charisma, Vol. 2Kumiko Suekane