Like in most things, it depends. It depends on your budget. It depends on your goals. It depends on your skill level. It depends on you. A general rule of thumb, which I believe has been mentioned, is that your body matters less than your lenses. For that reason, you determine what your goals are. Low light? Landscape? Sports? Nature? Wildlife? And then look at the glass.
You also need to decide between full frame and crop frame bodies. Full frame are pretty much the same as the non-digital cameras; whereas, crop bodies have a crop factor which, well, crop the frame. Crop lenses are generally less expensive and lighter. However, full-frame lenses can be used on crop bodies, but crop lenses often leave vignetting on full frame bodies. Generally speaking, fixed lenses offer better quality over zoom lenses. Zoom lenses offer convenience. Each has its place. Wide angle lenses for landscapes. Long lenses for wildlife. Fast lenses for sports and low light.
For me, nothing beats Nikkor lenses. But that's just me. You'll find an equal amount of people, or more, who prefer Canon. It just depends. I started with a Canon AE-1 program back in the 80s and learned to develop my own film and prints in a darkroom. Nothing great. Just enough to know the process, which helped learn about the exposure triangle of aperture, shutter speed, and ISO. Add in a basic understanding of the rule of thirds and you're all set, lol.
The lenses that generally come with bodies as a kit aren't that great; however, sometimes you'll find a pretty decent all-around lens. Oftentimes, it's better to forgo the kit lenses, save a little money and then buy a better all-around lenses or a couple of lenses.
I have two bodies -- a D90 and a D7000. My wife generally uses the D90 now. I'd like one of the newer Nikons, but the D7000 does what I need. I also have a nice wide-angle lens for landscapes; a 1.8 35mm fixed; and an OK 50-150mm 2.8. In past trips, either to Costa Rica or Spring Training, I've rented a big zoom. I'd like a new 70-200 2.8 but at more than $2000, I can wait.
A couple or three sites I find helpful:
Welcome to DSLRBodies | DSLRBodies | Thom Hogan
New Camera and Photography Articles, Nikon DSLR camera and lens
https://www.kenrockwell.com/index.htm