Go Shopping, get Money

Shoop

💎 Shoop is a German cashback portal, so, you get money back when you buy stuff online.
💎 Instead of going to an online shop, you first go to shoop and then click the link to the shop. After the shop confirms the purchase, it gives money to Shoop and Shoop then passes 90 % of this money to you.
💎 I've been using it for more than 10 years.
💎 You get a bonus of 10 Euro for your first purchase with at least 10 Euro.
💎 So, just buy your next Pizza at Lieferando with 4 % cashback and woohoo, you get 10 Euro on top.
🌎 Shoop is basically available worldwide, but you will mainly find German shops.
Sign up here.

Befrugal

💎 Befrugal is a US-American cashback portal. You get money back when you buy stuff at a shop.
💎 You will get a 10 $ bonus as soon as you reach 10 $ of cashback - 20 dollar just for shopping.
🌎 Befrugal is basically available worldwide, but most shops are American.
Sign up here.

Swagbucks

💎 Swagbucks is actually a GPT site, but they also provide you a few shops with cashback.
💎 You get paid in SB and each SB is worth one cent. You can redeem your SB as gift cards (Paypal, Amazon, Steam, ...)
🌎 Swagbucks is available world wide.
Sign up here.

💎 Don't worry, if you are from a different country. There is probably a cashback portal in your country as well - just google for it (and please use a referral link, as they often give you a nice bonus).