If you're looking for a tool that offers a broad range of high-quality fonts across multiple operating systems, SoftMaker Office NX Universal is a good choice. The office suite works on Windows, macOS and Linux, and comes with a range of high-quality OpenType and TrueType fonts. It also offers unlimited webfonts and a scalable interface optimized for Windows 11, so it's a good option if you have different font needs.
Another useful tool is Font Finder, also called What Font Is. This AI-powered tool can help you figure out what font is being used in an image. You upload a clean image of text, and it automatically breaks down the letters and offers a list of matching fonts with links to download or purchase. That can be useful for designers and anyone else who wants to try out new fonts or figure out what's missing.