If you're talking about international surveys that pays well, I'd recommend you Swagbucks and Freecash. These particular sites has offer walls and paid surveys and many more methods to earn. And they pay fast like about a day after account verification
I have been Amazon Mechanical Turk and it has been paying over the years, the reward is in gift card which applied to your Amazon account, you can use it for shopping. Good thing about this site is that they have surveys from all over the world so you decide which one to take part.
There are several survey sites all over the internet but unfortunately I find them to be deceiving in some way in that you sign up and you are told you don't qualify for the survey. I had many and I left them am now working on Paidview point but moving very very slowly.
Survey sites are usually very promising site that will earn you enough money, but the problem i have is that they will waste your time on their platform then you will not qualify.
There are a lot of survey sites, they are survey points, my gov, scarlet, Toluna, Swagbucks, LifePoints, OnePoll etc. Try using this site's and it will take time too.