Hi Larry
sorry but that is one of those questions like "how long is a piece of string?"
There are many many distros (distributions) of Linux and most of those are available in a number of versions. Some versions are tailored to using minimum resources and are great for older or low-spec systems. Other versions are "all bells and whistles" and need more ram and take up more space.
Distros all have a DE (Desktop Environment) which is the interface you see on the screen to interact with all the code you don't see in the background. Most distros offer a choice of DE, the most full-featured DE is generally thought to be KDE, but it uses more resources. I tend to go for XFCE (I believe it is pronounced "X-Face") as a great compromise with light use of system resources and still full features and very intuitive to use. So I would suggest you have a try with Linux Mint XFCE, or another distro with an XFCE option. (Solus doesn't offer XFCE, but its default DE, Budgie, is similar to use.)
I'm currently using Solus Linux off a 64Gb USB drive, it is taking up 16Gb on that drive. That isn't just the OS, that is all software and my stored files. (I store most of my files on other USB sticks.)
Solus would also be a good first distro to try. It is very easy to use, it automatically detected my two printers and set them up with no input from me. (after it found the wifi network and asked me for the password.) I have two Brother printers, one laser and one inkjet, both connected through wifi, and Brother support for Linux isn't great. HP is the best for Linux drivers, and most popular distros come with the HP Linux driver suite pre installed, so it detects your HP printer and sets it up. Solus Linux detected my Brother printers and set them up as "driverless" printers so I didn't have to go through the hassle of downloading drivers from Brother and installing them - it is a pain with Brother printers on Linux, more so than Windows.
I'm thinking of changing back to Linux Mint as Solus lacks a few pieces of software I liked on Mint, but Solus would be a good place to start.
as I suggested before, I'd start installing a couple of different Linux distros on large-ish USB sticks (one per USB drive) and boot from them, a 32 Gb drive should be big enough. Most distros have an online forum where you can ask questions.
Distrowatch is the starting place where you can see which distros are most popular at present, and can find links to each distro. I have linked it below. Look at the column on the right, that is the ranking of currently most popular distros. MX, Manjaro, Mint are top 3 when I linked. You can click on any Distro name to get more info about it. Then look for "Desktop" to see what desktop environments are available in that distro.
If you like my idea of trying it installed to a USB stick so you don't mess up your Windows installation, make sure that you
are installing to the USB stick, you don't want to accidentally erase your windows installation by installing to the hard drive.
News and feature lists of Linux and BSD distributions.
distrowatch.com