I, like you was looking to train abroad in either US ($2 to £1GBP) or RSA (R17 to £1GBP) but as the GBP got weaker the different in costs when I added up flights/accommodation etc become very little.
I then took a look at Highland Flying School offering PPL's for £4,995 but they then ceased trading and I was back to the drawing board. I was looking for a balance of good instruction, reliable AC and would suit by budget.
Cardiff Academy of Aviation was my local club but they also ceased trading (I hope it's not my fault - I show interest in a club and they seem to fall through).
Trying hard to advertise here on pprune, I decided to look into a club based on the Gower Peninsula in Swansea, possibly one of the cheapest places to train in the UK, my instructor who took me out last weekend has 10,000hrs so he's not exactly a novice.
Good luck with your research, I'm sure you'll find a club sooner or later.