I Started with Deadhouse gates, maybe that made it easier as that was more compelling story than the siege in gardens of the moon. It is a hard set fits time i have read a set that spanned epochs.
quoting wiki "The series is not told in a linear fashion. Instead, several storylines progress simultaneously, with the individual novels moving backwards and forwards between them. As the series progresses, links between these storylines become more readily apparent."
The first 3 black company books are terrific. They likely only charted out the first 3 and had to really work to come up with the next ones.
The Belgariad is another set i have crazy rereads on.
Pern
Dragon lance.( first set ofc)
Drizit
Sanderson is getting mad rereads. Stormlight and the mistborn sets mostly.
As is Dresden that whole set is over 5 now.