Those looking for friends & other Expats

Hi, I'm in Thailand living currently but from the US and planning to maybe spend a year in Croatia too once I get married to my GF.  But in reading posts here, I see many lonely expats wanting new friends and company.  I just wanted to write and say, whenever Im in a foreign place the best community of other foreigners I always find are the Couchsurfing community.  They usually have gatherings in every city on the planet weekly and you meet tons of foreigners from around the globe.  The Wed weekly gatherings in Bangkok, Thailand have around 100 people from all over the world gathered talking and drinking til late at night.  I've been to them all over Europe and the US too.  In Prague the weeklys are just insane with 2-300 people gathered every Thurs I think it was.  I Couchsurfed through Croatia last year in two cities there and its one of the reasons I hope to return and live there mostly while travelling Europe. 
   Well I hope what I said helped, and I'd like help over the next year in figuring out price comparisons between living there and in Thailand.  Mainly renting a nice condo/apt in a good coastal city.  What can I get for around 500-700 Euro?  Do you think you picked the right city to move to? Why?  Or where do you wish you'd gone and why?  Thanks!