You can use web fonts from webfonts.fonts.com in your WordPress web sites, managing the web fonts and selectors directly in your WordPress web sites.
Webfonts.fonts.com offers over 8,000 Web fonts from Monotype®, Linotype®, ITC® and others. The exclusive home to Helvetica®, Frutiger®, Univers® and other celebrated fonts. It support for over 40 languages and provides Latin, Cyrillic, Greek, Simplified and Traditional Chinese, Japanese, Korean, Thai, Arabic, Hebrew, and Devanagari fonts
To use this plugin you need to sign up a webfonts.fonts.com account, install the plugin and you can start adding web fonts to your sites. There is a function that can extract the selectors used in the sites and you can just add fonts to the selectors.
You can also used the WYSIWYG editor with web fonts enabled in the plugin so you can type the content and see real web fonts as you type. There are options to enable the web fonts WYSIWYG to Admin or/and visitors. The web fonts in the WYSIWYG can also be configured. It will provide the same editing experience as you using a desktop editor with fonts selection.