WOFF fonts are a variation of OpenType/TrueType with additional features to make them work better for the web. Unfortunately this also means that font foundries tend to charge twice for the same font if you want it both in "desktop" and "web" formats.
In much the same way as there's no standard list of OpenType fonts, there's no standard list of WOFF fonts - there are more being made available every day. The closest thing is the Google web fonts repository (
https://fonts.google.com/) - a load of WOFF fonts hosted by Google that you can use for free in your website.
But with any WOFF font - like any other font you might want to use in an SVG file - you will need to manually add them to your document or stylesheet. Obviously Inkscape handles this for you when you choose a locally installed font, but it doesn't deal with WOFF fonts.
To be honest, I've never actually tried a WOFF font in SVG. It should work - as SVG can take its styling from CSS - but I've never had cause to do it myself, so can't provide any more specific information.