I am looking to buy a camera, DSLR or mirrorless, around the $1000 marker.
This will be mainly for videography not photography. So I would want to be able to plug a microphone and headphones into it.
Also, good lowlight performance would be ideal.
Thanks for your help.
Very few cameras have external mic plugs and even fewer have headphone jacks - only the flagships e.g. panasonic gh4/gh5 and sony a7 series tend to have these. If you are wishing to maximise quality and don't mind some fiddling, spend $150-200 on a zoom h1n with or without an additional Mic and then sync the audio to the video after.
For $850 you can get a decent panasonic (G7 or gx85) or Sony body (a6300) for the video. The budget doesn't go far however and will be pretty much restricted to kit zooms lens (which arent bad but are generally slower/not as good for low light) or prime lens (fixed field of view). Alternatively you can consider an lx100, lx10 or rx100 iv.