Now first way and maybe the easiest way to earn some money is to complete surveys. For me I can't make any money with that method because I don't have time to wait month over month for just 50$. But if you wanna try it there are some sites like Toluna, YouGov or just google for your personally best one.
The second way is to work as a freelancer. For this one you need a talent or something you're good in. And when you found your individual strength you go to the website Fiver and write down your best talent for example editing photos with PhotoShop/Gimp. Now you have to wait for a customer with a contract for you.
One of my favorite ways to earn money online is to buy Bitcoins or other cryptocurrency. It's very simple but you have to investigate your own money at your own risk to lose money. But if got some knowledge about investments and cryptocurrency it's such a good and profitable possibility.
Sell products as a affiliate. To sell as a affiliate you need to go to DigiStore24 register your self, choose a product. The most difficult thing about affiliate marketing is that you need a lot of online reach and positioning to show the product to a lot of people. So you share your affiliate link on your website or on your social media.
The truth about getting your daily money is that you have to help people. If you solve problems for people and help them you'll get money from them. For example a women is searching the internet for hints to lose weight. And your website is about fitness & health so you're writing some free and helpful content and between this content you drop some affiliate links so the women is clicking the link and she maybe she think about to buy the product.
So that the secret even in big business!
Thanks for your attention hope I could help you!