Where do you live? If you live in some third world countries, survey will not very effective since you only get less than $1 per survey. However, if you live in US or UK, you can get upto $50 per survey. Here are what I have found on this forum and hope you like it: https://rewardsplaza.com/
You can find the main thread on Bitcointalk here: https://bitcointalk.org/index.php?topic=1645411.0