I've tried googling all sorts of different sentences trying to find information on PAEs. Nothing that comes up is of any use.

Here is my situation:
My patent was granted in 1 country, pending in several more. However there is at least 1 company who has come out and announced a product that would infringe my claims. There are several more who have hinted towards doing it.

Now I would like to approach them about licensing. However it is very likely (IMHO) based on my initial impression from preliminary discussions that they are going to say things like "You don't have the money to enforce."

Obviously I am not looking for any concrete answers on what to do. However I am looking for a theoretical framework with which I can reason about my options.

I would imagine that there is some sort of advisors who advise people on how to deal with these situations. However I cannot find them.