Jost

Similar to Futura, an open source Variable Font.

Futura in action with Playfair Display

– Typ.io

Variable Fonts Are the Future of Web Type

Blog post on adobe.com

Font Playground

Play with variable fonts!

Variable Fonts

A simple resource for finding and trying variable fonts

Lost Type Co-op | DDC Hardware

Frere-Jones Type

Font Pair - Helps you pair Google Fonts together

Google Web Fonts font pairing | Typ.io

Beautiful Web Type — the best typefaces from Google Fonts