The Sony RX100 series would be in most top lists. Though personally I'm not sure why they went with a slower lens from the mark 6 onwards. The ZV1 continues with the a similar lens from earlier models. I have the RX100 mark iii, that's still quite good.
I second the RX100 series. As a step up, there is RX1 with a full frame and fixed lens. And HX99 the other way with a smaller sensor, but goes all the way up to 720mm.
