There are lots of good country clubs on WGT. That said the really really bad ones out number the good ones by the tens of thousands. Five years ago WGT estimated there were close to 50,000 CCs. That number is likely doubled by today.
So here are a few general pieces of advice:
1) 1000s of CC are what I call dead. The owner has not played for years and the majority of the members have not either. Avoid those like the plague.
2) Among the 500 or so good Country Clubs some are for mobile players only, some are for PC only and some have a healthy mix of both. If you play mobile then stay away from PC only clubs.
3) There are some exclusively one language clubs be it German, French, English or others. If you do not speak French - stay away from French speaking CCs.
4) There are some CCs that take the Clash and / or Turf Wars ultra seriously. If you do not want to do that - stay away from those CCs.
5) There are CCs who expect the members to enter in win Ready Gos. As a Tour Pro - stay away from those. They would not accept you anyway so not much of an issue there.
You ask also what is the benefit of joining and or creating your own.
First let me say that starting your own really provides little benefit to a new player who wants to improve the level of their game. As the owner you would be needing to help new less experienced players then you. You therefore only learn what you know and / or slowly figure out.
The benefit of joining one of those 500 or so CCs that I would consider good is twofold:
1) You have the ability to interact and learn from WGT players that have been playing for 5, 6 or 7 years.
2) You have an instant "CC Friend List" where you know that you can always find someone to play a round with, learn from, never have the person quit a round because they are having a bad one and just folks you can get to know.
Finding one of those 500 starts here in the CC Corner. Read some of the posts made about a CC. Read what others both from within the CC and outside of the CC. If you like what you read then message the owner or one of the Directors and ask questions.
We are full right now but read ours for example (The Peoples Club) read a number of others. Soon you will discover one that sounds appealing to you.
EE