Going from lawful to chaotic, good to evil, we have:

• Gecko (Firefox, Seamonkey, and derivatives)
• Servo
• Libweb (Ladybird)
• Links2 (as well as ELinks and other forks)
• WebKit (used in a lot of stuff, namely Safari and GNOME Web)
• Goanna (Pale Moon and Basilisk)
• QtWebEngine (Konqueror, Falkon, and qutebrowser)
• Blink (Chromium, Brave, and derivatives)
• Trident (Internet Explorer, old versions of Maxthon, old versions of Avant, and any homemade browser created with Visual Studio).