grinding to 105 soloFollow

I'd consider Brother Island, which is now open to all and unlike the other open zones in the latest xpac, Brother Island has enough room, mobs and camps to accommodate multiple groups easily. The XP is excellent since at 102 you will find the mobs are yellow to you.

Tip: the animals all assist each other but they do not assist humanoids. Nobody assists the undead, except for undead and there are 3 camps of undead with 5 mobs each. (One has a named, so watch out for it since I doubt a 102 mage could molo that mob.)

Assist range in Brother Island is very small, too. You'll find that mobs in a camp which look close enough to agro adds in other zones don't have that effect here.