It's hard to go wrong nowadays. There haven't been any big catastrophic issues since the Snapdragon 808/810 (minus the Note 7 thing, but that was design, not the actual CPU or anything).
I've currently got an LG V30 and its really nice. There are some quality control issues with the screen (being that this is LG's first real OLED in a flagship), so if you decide to get one just make sure you're okay with the screen before you walk out of the store. Though I will say there's no comparison to Samsung's AMOLED screens, they're a generation or two ahead. The BASE camera is a little lackluster, but there's hope that a software update can help. Where it really shines is the fact that it's got a dual camera with a wide-angle lens. So instead of the "portrait mode" that most dual camera phones come with, this can capture more of the "shot" without having to back up so far away from the subject. It's also got a lot of great features for the video camera that I haven't really played with yet. Add in a 6" screen in a relatively small package, HDR support, water resistance, a micro SD card slot, and wireless charging...it's definitely worth a look especially if you find Samsung's version of Android too heavy.
The usual suspects, Samsung, LG (the G6 is pretty great too), and Google's Pixels are all great picks this year. Its been a really solid year for phones. I watch a lot of coverage on the latest phones and I've had an LG G6, Samsung S8, BlackBerry KeyOne, and LG G30 this year (and my wife has an iPhone 8+) so I can answer most questions if you have any!