Trove Guardian can be located on Moon, this enemy was introduced with the Shadowkeep update and has been roaming around ever since. Finding him is quite easy, he is a large red hive enemy.
Destiny 2 Trove Guardian Location This Week
Trove Guardian’s Location This week is Archer’s Line on Moon. Locating him is really easy, just head to the location mentioned, there you will find a huge enemy hive as shown in the picture below. Eliminate him.