There are more than one band under this name:
These are photos from concerts where Harbinger played, so they may be of other bands that played the concert as well.
Signs Of The Swarm / Harbinger / Mental Cruelty Sep 2, 2023 Southampton, England, United Kingdom Uploaded by Dan Delaney
Rivers of Nihil / Fallujah / Inferi / Harbinger / Allegaeon Nov 25, 2022 Nijmegen, Gelderland, Netherlands Uploaded by Ilseoceansoul
Decapitated / Signs Of The Swarm / Harbinger / Embodiment Apr 3, 2022 Bristol, England, United Kingdom Uploaded by Josh King
Decapitated / Signs Of The Swarm / Harbinger Mar 26, 2022 London, England, United Kingdom Uploaded by Declan Singh
Bloodstock Open Air 2019 Aug 8 - 11, 2019 Walton-on-Trent, UK Uploaded by Willyporter
Ingested / Osiah / Harbinger / Diabolus / To Obey a Tyrant Apr 8, 2018 Bournemouth, England, United Kingdom Uploaded by Dan Delaney
Loathe / Death Remains / Our Hollow, Our Home / Harbinger / Jonestown May 11, 2017 London, England, United Kingdom Uploaded by Yan
With Life In Mind / Like Vegas / Maris Lane / My Private War / Harbinger Dec 20, 2013 Wilmington, Delaware, United States Uploaded by Agnes Owusu