Hey, having so much information around can get overwhelming indeed. I suppose you are referring only to online courses. If so, it is trial and error unless someone left and opinion or a review in internet. I guess the best way to go about it is to check youtube for that course promo to get a glimpse if you like the way things are explained.
If you think that explanation and breakdown of the elements suit you, a beginner course would be an option. Otherwise, there are milions guildes and videos for free on Youtube and Twitch. To make an easier search you can use the following sources as a "To-do list" or a "Guide list":
https://www.youtube.com/user/poledancecommunity
http://poledancedictionary.com/moves/
Hope you'll find the best option for youself.
P.S. If you are planning on getting a pole and training at home, I strongly suggest to make sure that the area and ceilings are suitable for this and for most difficult moves ask for assistance (spotting) to avoid injuries. If from time to time you could get into actual pole dance class, it would be beneficial as an instructor can correct mistakes people make when training alone.