Tell me which computer to buy...

I am looking to buy an off the shelf computer, definitely not looking to build one. Just something I can go to the store and pick up or have shipped from Amazon. Not looking for anything fancy. Its main uses will be basic things like spreadsheets, video editing for a podcast, running 3D printer CAD software and some basic gaming. By basic gaming, I mean like a mild Skyrim style build.

Im definitely more of a desktop kinda person. Id much rather sit with a keyboard and mouse than have a laptop to carry around, but I know you can get some pretty decent laptops that can plug in to function like a desktop. Sorry, not very technical or computer savvy.

Also, is anti-virus software still a thing? I definitely want recommendations on how to keep the computer safe from viruses.

Thanks!