The Aether Currents are in easier to reach places that are closer to areas you are normally visiting during the storyline. They also changed the quests that give you currents so they are ones that are at the beginning of quest chains or standalone ones so when you get to a new quest area you can easily pick out what to prioritize. It might be tough to find an updated guide since once we have unlocked them we can't see them anymore so the people that did the maps months ago aren't able to go back and check where they are now.

A little tip if you weren't aware, the Aether Compass can be put on your hotbar and used while on a mount, it makes it a lot less cumbersome to find the currents that way.