If you want, I can also give you the exact SHA-256 checksums for verified font files so you can confirm your package is authentic.

: After installation, a green checkmark or "Installed" message should appear next to the firmware/font items. Common Issues & Fixes Quickstart - Vita3K - Playstation Vita Emulator

Because Sony holds copyright over PS Vita system fonts, you cannot download a "verified" package from third-party websites without legal risk. The proper method:

For general font needs, Font Squirrel (https://www.fontsquirrel.com/) and Google Fonts (https://fonts.google.com/) are excellent resources for free, open-source fonts. You can download fonts from these sites and then see if they need any additional configuration to work with Vita3K.