So the Nether hub can be quite confusing if you're not sure of which hallway is the portal you're looking for. To help that, I decided to make a list with the portals in each hallway! They're ordered from closer to further from the four main portals.
Public Skelly XP Farm
AuroraKnight's Base (Private)
Geo's Mining Outpost (Private)
Heatherly's Base (Private)
Romy and Chappy's Base (Private)
Public String Farm
DrParan0ia's Base (Private)
Maysey's Base Mush Isle (Private)
Public Mush Isle!!!
Ice Spikes Portal (bring a minecart)
Public Guardian Farm
Whiter Skull Farming Area (not a portal - bring a minecart)
Public Jungle Biome
Joe's Big Base
Please let me know if I missed something, misplaced a portal location or if there's a new portal so I can update the list!