Use [[http://fontello.com/|Fontello]] (open source) or [[https://icomoon.io/|IcoMoon]] to generate a font that contains only those glyphs needed.

IcoMoon can generate SVGs, including an SVG containing all glyphs that can be used with a technique detailed in [[https://css-tricks.com/svg-symbol-good-choice-icons/|SVG `symbol` a Good Choice for Icons | CSS-Tricks]].

[[http://glyphsearch.com/|GlyphSearch]] helps you search for glyphs in Font Awesome, Foundation, Glyphicons, IcoMoon, Ionicons, Material Design, and Octicons.