Mediumish
Mediumish is a theme from wowthemes.net which looks very much like medium. If you’re looking for a theme which is so similar to medium that people will not distinguish from the original site, then this is it.
Graphy
WPMedium
Astro
Simplr
http://42layers.com/simplr/
Literatum – Just Write
https://themeforest.net/item/literatum-just-write/8523411
Gommero Travel
https://www.inkthemes.com/previews/?demo_id=956
Wonders
https://creativemarket.com/ThemeVan/105022-Wonders-An-Elegant-Blog-Theme