>>2990615>rich>only wants to spend $1,500 on a bodylol
Well since you liked the Sony mirrorless, you could try an a6000. Dirt cheap body ($400) and could use your current lenses. It is a generation or two old though. Menus are a little out of date (though a major step up from your NEX-3/5).
Newest e-mount is a6500. Fast as fuck autofocus, and a fantastic sensor. It also has in body image stabilization. Pretty expensive though, about $1500.
You could also look at Sony's full frame mirrorless. a7ii can be had for around $1500. It also has IBIS, so combined with the FF sensor you can take some pretty damn good low light shots.
Fuji mirrorless is also worth a look. X-T10 is a solid budget choice ($800) but falls short of a6000 performance. The X-T2 is an absolutely fantastic body, but costs more than brand new the a6500 even.
Since you want night/low-light shots. I'd recommend the a7ii. Nothing would beat the large full frame sensor, and the ibis is a considerable advantage. It is a little larger, and so are the lenses, but it is still compact compared to a full sized DSLR. It has a lot of lenses, but most are pro-level, so they can be expensive. a6500 wouldn't be a bad choice if you wanted something a little smaller. a6000 would also be a good choice, and it would give you more to spend on lenses.
Fuji is also worth serious consideration. It has a pretty solid lineup of affordable, fast lenses that while maybe not as sharp wide open as a G Master, are still pretty damn good for most uses. It also has considerably better .jpeg output. This comes at the cost of poor raw support in many third party programs (lightroom still doesn't handle them as well as RAW Therapee), though this is less of an issue than it was a year ago.