>>2070997Sony a6000 (most bang for buck) + Sony E 10-18mm f/4 OSS (wide angle) or Sony E 35mm f/1.8 OSS (50 mm full frame equivalent). You can step up to a6400 for shooting video but for photos it's not really worth it.
The GRII is great too and reasonably priced.
Avoid full frame cameras. They weigh a ton and aside from having a bigger lens selection and a very narrow segment of specifically designed low light cameras they don't offer any advantages to APS-C mirrorless. The bulk alone will make your photographs worse.
If your phone is fairly new and flagship then you can download an app that will shoot in RAW. Editing RAW files in Adobe Lightroom will do wonders for your photos and will look better than unedited photos from a "real" camera. The "pop", contrast, and other stuff associated with appealing photos all comes from Lightroom editing. If you need your photos to be bigger for prints then you can always get an AI photo enlarger like Gigapixel AI. Low light situations are handled fairly well by modern low light modes.