What camera should I get?

I'm upgrading from just using my phone camera, but can't decide on which one to purchase. I'm between the Nikon d3400, Panasonic g7, canon t6i or canon m6?
I want something good in low light and that can shoot a bit of everything. Trying to stay under 500$ as well.

We gave our daughter the Canon t6i as a gift last year, and she loves it. She wanted that specific one because she was using an earlier version at work so the learning curve would be short.

Pentax K-70.

Even if it costs a little more than $500, it's a great camera.

You don't mention what types of photography you want to do or do. This makes it impossible to really states which camera is going to be best for you. You mention low-light photography, which means that you'd be better off with a camera that has in-body image stabilization (IBIS). All of Pentax's DSLRs have IBIS that allow you to shoot 5.5 stops slower shutter speeds or lower ISO. So when comparing a Pentax to a Nikon, both with say a 50mm f/1.4 (which is common for low-light shooters), you can be at ISO 200 with a Pentax but you'd have to be at ISO 6400 with a Nikon since Nikon does not make a stabilized 50mm. I'm sure I don't have to explain how huge of a difference in image quality there's between shooting at ISO 200 vs ISO 6400. You could be shooting with a $5,000 D5 and a $5,000 Otus at ISO 6400 and still not produce anywhere as good image quality than a $700 K-70 with a $400 50mm f/1.4 at ISO 200.

Not a fan of the Nikon D3xxx series of cameras specifically because Nikon has stripped them of an auto focus motor. This limits your lens options and really makes buying used lenses confusing as there are no fewer than 5 types of F mounts. Some have AF motors and some do not. Plus it doesn't have IBIS, which is what you need for low-light work.

None of the cameras that you've listed use IBIS. Therefore, none will be able to compete with the Pentax K-70.

In addition to using sensor shift technology for IBSI, the Pentax K-70 also uses it for pixel shifting. Pixel shift takes multiple shots with the sensor moved by 1 pixel. Then the software takes an equal number of red, blue and green pixels from each of the frames. Combined, this creates an image with higher sharpness and better and more accurate color than any camera that uses a Bayer pattern sensor which is all cameras except for Fuji.

Hands down, no contest, G7.

Polaroid it gives immediate printing of pictures