Hi and welcome.
OK, let me start out with a couple of general comments.
1. What type of phone do you currently have and do you use it much for photography? Are you on IG a lot?
2. When you say "wildlife" are you talking about "birds in my backyard/the cute squirrel on my front tree" or "I'm thinking of taking a safari to Africa and in the meantime I want to get a good picture of a Bald Eagle in nature"?
3. Any thoughts about what you initially want to spend?
Now let me offer a couple of general overviews. There are a ton of camera options out there. It can be bewildering to a newcomer. Don't let it discourage you. And starting out--a lot of your photos will be dreck. And that's OK. The great French photographer Cartier-Bresson once said "your first 10,000 photos will be your worst." The point is not that you'll suck at this for 2 years. It's that an important way to getting better is to start shooting, learn from your experience and keep shooting. Don't wait for the perfect moment to click the shutter. Don't wait for the perfect photo to post results and ask for feedback.
Also, people have biases. You'll get people who will argue vehemently that the model of camera they have is the best (because that's what they know and of course, why would they choose something inferior?). So don't be put off by that. The best camera is the one you have with you. And the person behind the camera matters more than the camera itself when it comes to the quality of the picture.
Mirrorless is the future of photography. It's lighter and has several advantages. That said, I recommend you get a used, inexpensive DSLR kit (a body and a lens). You can probably do that for $200-$400. And you learn on that. Then you'll be able to make much more intelligent decisions. Because if you want to shoot birds in Africa, you'll want a 600mm lens. If you want to shoot on long distance hikes you'll probably want a camera that is weather-proofed and as light as possible.
A specific make, body, and lens I'd recommend would be a used Nikon D3500 DSLR with a 35mm f2.8 lens, battery, and SD card. That will be great for shooting people (especially indoors) and landscapes, and wildlife that is close. It will be dirt cheap ($200-400 depending upon how used it is). And you will learn enough about photography and cameras to then be able to say "here are the specifics I want" and to be able to evaluate and compare a range of higher-range cameras and choose with an informed mind.
Also, depending upon how you learn (books, classes, videos) I'd invest in some type of instruction. That will speed up your learning curve. Your camera will initially be less frustrating. If it's an in-person class with others, you'll see other cameras and learn their capabilities (which will also help you make choices in the future).
I know this may sound frustrating. But think of it this way. You're 16, just got your driver's license, your parents say they'll buy you a car and you ask "which car do I want to own as an adult, maybe a parent, and own for the next 15 years"--hah! You don't have that level of insight as a new 16 year-old drive. Ditto with someone starting out in photography. View your first camera as a tool to help you become a competent photographer which will then allow you to decide what you want in a camera and what is just 'meh' for you.
All the best to you and welcome to TPF.