The kind of passive infection that is shown in popular videos like this one (https://www.youtube.com/watch?v=6uSVVCmOH5w) tend to only happen if you hook up an XP machine to be directly accessible to the Internet. Like, if you connect your XP machine to your router sitting in the middle of your Internet connection and don't forward every port, you should be fine in that regard at least.

There is also Supermium which is a relatively recent version of Chromium backported to run on Windows XP with all the security patches that brings, but with that being said I still would not do anything security critical on it.