I guess it depends what you’re intending to use it for.
Is this supposed to be an everyday use thing or are you just trying to revive it to get a bit of use out of it?
I’m pretty sure your looking for a linux distribution and I think the only one to recommend for beginners is Ubuntu. It’s probably the most widely adopted, their package manager makes for easy installation and I feel they have spent the most amount of time trying to deliver a “windows like” experience, for better or worse.
Linux Mint is another option. It’s based on Ubuntu Linux, so can use all the available Ubuntu software packages. The Mint desktop environment is very similar to (at least older versions of) Windows.
The Xfce version of Mint uses the Xfce desktop, which is “light weight”, thus suitable for hardware with limited resources. However, the stated hardware in the OP would likely be OK with any Mint version.
Yeah, I can also recommend mint, I’m a fan of their live distributions that don’t require you to install anything will just run off a ramdisk. A mint live cd saved my butt a couple times.