All sites listed here are reputable and verified to pay. You can click on (My review) to read about my personal experience with the sites. If there is a site you know of that I don't have listed, please let me know in the comments. Thank you!

Task based sites
Remotasks
Data Annotation

Academic Surveys
Prolific
Cloud Research (My review)
MTurk (My review)

Audio/Video Surveys
UserTesting (My review)
Dscout (My review)
Respondent.io

Market Surveys
MyPoints (My review)
Swagbucks(My review)
Qmee
Survey Junkie
AttaPoll

Games
MistPlay