The pants-length overalls in the first collage are all really cute (notice how most are styled rolled-up?), but my favorite modern overall is the shorts. They're even more romper-esque and look less like painter's overalls than the long pants. I doubt I'll be purchasing denim overalls (short or long) anytime soon since they're obviously super trendy, but I'll enjoy seeing them out&about while they're here ;)
Overall/dungaree photos from here:
Forever 21, Nordstrom, Free People 1, Free People 2, Threadsence, Wasteland, Sincerely Jules, Fabric Snob, ASOS 1, ASOS 2, ASOS 3, ASOS 4, ASOS 5.