The best alternatives to Windows 93 are Windows 95, 98.css, and Virtual Windows 98. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Windows 93?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Windows 96 is a browser simulation of Windows 98. Any modern web browser can run it and experience the glory of a meme-y recreation of an old Microsoft operating system live!
A JavaScript/React clone of the Media Player app shipped in Windows 95. Classic UI & functionality to play your media on today's web! Wouldn't be possible without 2 major dependencies - React95 (http://react95.io) & Cassette (github.com/benwiley4000/cassette)