CreativeMarket.com - Not only do you get to buy fonts here, but you can also buy design materials like Instagram highlight covers and Instagram story templates. One of the best features is that you can test the font before you purchase it.⠀⠀⠀⠀⠀⠀⠀⠀⠀

MyFonts.com - Most well-known font designers sell their fonts here. They are mostly expensive but definitely worth every penny if you want to invest on some great fonts. They sometimes have discounts so keep on the lookout if you spot a font you’ve been eyeing for a while. You can also test fonts on this website.⠀⠀⠀⠀⠀⠀⠀⠀⠀

Crella.net - They have so many fonts that are only $1! I love this website for it's stylistic fonts that are perfect for anything design related!