What are some alternatives?
When comparing TypeCatcher and Google Fonts, you can also consider the following products
Open Font Library - The mission of the Open Font Library is to promote your freedoms as it relates to the use of type.
Font Squirrel - Font Squirrel scours the internet in search of FREE, highest-quality, designer-friendly, commercial-use fonts and presents them for easy downloading. We don't have the most, but we do have the best.
Typekit - This will change the way you design websites. Add a line of code to your pages and choose from hundreds of web fonts. Simple, bulletproof, standards compliant.
Fontspace - FAST and FREE downloads of over 37,000 fonts for personal or professional uses. Fonts for Pinterest projects, DIY wedding invitations, scrapbooking and web design
Font Awesome - Font Awesome makes it easy to add vector icons and social logos to your website. And version 5 is redesigned and built from the ground up!
Befonts - You can download the best fonts, free fonts for personal or commercial use.