Sony RX 100 mk5 (or mk3/mk4 used)
Probably the best point and shoot camera available. High MP count, large sensor, pop up viewfinder, great high quality zeiss lens with a nice range. Exceptional video quality, probably the number one camera used by vloggers. This would be my #1 pick, I'd save money and buy the mkiii used on ebay for $400-450.
https://www.bhphotovideo.com/c/product/1...8045322040
Canon G5X
Very similar to the sony above (same sensor and a lot of the same tech) but a little bigger, more geared towards enthusiast photographers.
https://www.bhphotovideo.com/c/product/1...amera.html
Panasonic LX100
Again, similar to the others above, great lens, great sensor and image quality, Leica lens, probably the best video quality of all point and shoots,bigger but more control and refinement then the others. Cheaper used on ebay then the others.
https://www.bhphotovideo.com/c/product/1...amera.html
If you dont care about getting the best image quality in a small package, dont care about having a viewfinder, or the latest technology, there are tons of good used cameras on ebay.
Sony rx100 mk1 and mk2
Panasonic LX5 / LX7
Any Canon Powershot (S110 go for like $100) made in the last 5 years.
And you can always just use your cell phone, I am traveling now and thats what I'm using even though I'm kicking myself for not bringing my good camera.