Board Thread:Suggestion Box/@comment-190.42.88.9-20180501190738/@comment-6697950-20180501211737

SAO -> Extra Edition -> SAOII -> Ordinal Scale -> Alicization

AGGO can be watched at any time after the first half of SAOII. The Offline OVAs can be watched at any time after finishing SAO and SAOII respectively. They aren't integral to the plot, but might spoil the episodes from season 1 or 2.