Here is specific WordPress plugin for Google Fonts only.
You can turn on Script: — Cyrillic to use the cyrillic fonts! Unfortunately you CANNOT see how a particular font looks like inside WordPress - but worth trying! :-)
Here's another one
Use this plugin. Using FontMeister is easy. Enter your details for the individual providers in the "Font Sources" section of the plugin. Then go to the "Fonts" section, and pick the fonts you want to use. You can add your own selectors to the fonts, and the plugin will include them on your site.
The plugin supports fonts from:
Note that you will need an API key (for each type!) to use it... AK47SEO
The one I use for my wordpress site is a bit old - but still works just fine! Here it is.