Wow nice patience there. I was almost going to not reply out of spite.
If you don't want to create textures, you're probably going to have to adjust your modelling techniques to suit the video I linked above in which every tri/poly is colored individually.
https://twitter.com/EthanReddI've watched this guy model on twitch sometimes and that's basically his technique. you model every detail (and i mean everything because you can't rely on textures to feign it in) and just have it flat colors.
Other than that there are pixel based textures like in the Mega Man Legends games. It still requires drawing, but not "hand painting". You could also try making textures in a vector art program, but both might require work you don't want to put in.
And other than Sunset Overdrive, what do you mean by "stylized"? Anything non-realistic is stylized, and that's a huge spectrum, but if you want Sunset Overdrive results, you aren't going to get there without textures. I personally wouldn't even call Sunset Overdrive stylized. It's still much closer to realism, it's just a lot more colorful than many AAA games from what I can tell.