Topcashback

[BrokeStudent]

As the name implies this is mainly a cashback site to save/earn some money while shopping and such, but it also has a "free cashback" section were you can receive money from signing up to free trials or just trying out certain sites.

Here's some proof that they pay: 

And here's the link to the site:  https://www.topcashback.co.uk/ref/zesar