The Diamond Comics Advance Reorder List is a great speculator tool. It shows what books retailers are going back to get more of, in advance of their release. They are actually putting their money up betting these books get big. These are the books people are talking about in shops, message boards, and websites. Here is the Diamond Comics Advance Reorder List for 6/5/19:
BAD WEEKEND HC
ANGEL #2 CVR A MAIN
WAR OF REALMS NEW AGENTS OF ATLAS #4
AMAZING SPIDER-MAN #24
WATCHMEN INTERNATIONAL TP NEW EDITION
WAR OF REALMS NEW AGENTS OF ATLAS #2 2ND PTG GANG HYU
SAGA COMPENDIUM TP VOL 01
MIGHTY MORPHIN POWER RANGERS #41 FOIL MONTES VAR
SPAWN #298 CVR A MCFARLANE
BATMAN LAST KNIGHT ON EARTH #2
SPIDER-MAN ANNUAL #1
STAR WARS GALAXYS EDGE #3
ANGEL #2 CVR B PREORDER BUONCRISTIANO
FLASH #73
STAR WARS AOR DARTH VADER #1 DELLOTTO GREATEST MOMENTS VAR
SPAWN #298 CVR B MCFARLANE VIRGIN
STAR WARS AOR DARTH VADER #1
SPAWN #297 2ND PTG
MAJOR X #6
KITCHEN TP NEW ED
BATMAN LAST KNIGHT ON EARTH #2 VAR ED
WOLVERINE EXIT WOUNDS #1
SPAWN #298 CVR C B&W MCFARLANE
AMAZING SPIDER-MAN #25
HOUSE OF X #1