Like everyone else said - Spectrum and AT&T are likely your only options. Unless you're lucky enough to be in an area that AT&T has upgraded to fiber, you will likely only get old school, slow speeds from them.
You will get opinions from both sides - everyone will say AT&T is bad, everyone will say Spectrum is bad. I'm an IT project manager and work with Spectrum, AT&T, Windstream, etc on a daily basis. I've always been tossed around to multiple departments at AT&T, but Spectrum is usually great. And unlike AT&T, Spectrum doesn't have contracts