Models lll & lV of the Sony RX100 also have a built in viewfinders. Model ll can be used with a high, quality Sony accessory viewfinder, same one as used other on Sony RX cameras. At this point, virtually all software can read Sony ARW (RAW) files. JPEGs have never been any problem.
There are so many quality cameras on the market at this point, in every style, make, model and price range, that high quality photos are possible from any and all of them... assuming that the camera is in the right hands. My "go to" sarcastic quip when somebody says, "Hey, your camera takes really good pictures," is "Yea, I taught it everything it knows!"

Basically... buy a good quality camera that you feel comfortable with both in price range and feel... Go take lots of pictures. Practice. Get better.