Font Libraries
Google Fonts
Google Fonts (previously called Google Web Fonts) is a library of over 800 libre licensed fonts, as well as an interactive web directory for browsing the library. The Google Fonts directory is intended to enable font discovery and exploration, and the service is used extensively with over 17 trillion font served, which means that each person on Earth has, on average, downloaded each font at least 2 or 3 times. Popular Google fonts include Open Sans, Roboto, Lato, Slabo 27px, Oswald and Lobster. Check out https://fonts.google.com/
Adobe Typekit
Typekit is an online service which offers a subscription library of high-quality fonts. The fonts may be used directly on websites or synced via Adobe Creative Cloud to applications on the subscriber's computers. Users who opt in for one of Typekit’s plans, get access to either the personal of full library, with hundreds of fonts included. The fonts in the libraries have been licensed for use on the web from the font foundries. Check out https://typekit.com/
1001 fonts
Despite its name, the 1001 fonts website hosts a collection of tens of thousands of all kinds of fonts. The website is easily navigable and allows for simple use and access to an array of attractive fonts. Check out https://www.1001fonts.com/
Dafont
Dafont offers a wide variety of fonts with tons of different styles. The fonts are easily searchable and can be filtered based on by topic, and they can also be classified by name, date and popularity. The fonts presented on Dafont are their authors' property, and are either freeware, shareware, demo versions or public domain. Check out https://www.dafont.com/