If you want an Apple desktop, your only real options are the iMac and the iMac Pro. The thing about iMac computers is that they're "all-in-one" computers. That means they're essentially a screen with a computer hiding inside.
The iMac and iMac Pro come with glorious 5K displays, and those displays have some pretty meaty specs that make them suitable for professionals. But what if you don't need a 5K professional-grade display, and you don't really want to pay for it? Because you're certainly paying for it when you buy an iMac, pro or not.
There's the Mac Pro, but I'd absolutely dissuade anyone thinking of buying it. It's running on specs from 2013 and still costs $3,000, which is not an acceptable price tag for such an old computer.
There's also the Mac Mini, but no one should buy that, either. They're eight year-old computers, and you can get much better desktops for the same price.