I still have my Galaxy Note 4. It refuses to die, and manufacturers refuse to give it a competitor.
It may be its last year though, even though it is perfectly functional, and I blame app developers for that. It runs Android 6, and for the last couple of years, developers have been dropping support. LineageOS is an option, though on that particular phone, it is not as good as stock, and know some apps are going to piss me off because of SafetyNet. It is also starting to lack in processing power, as apps get more and more demanding even though they don't offer more in terms of features.
My next phone is probably going to be the XCover6 too. Seems to be the only decent phone with a removeable battery, with the FairPhone, but the FairPhone has no SD card, no headphone jack, and I find it overpriced.
BTW, the S5 was also an excellent phone, a combination of the two would have been perfect. It lacked a stylus, but it was waterproof and built like a tank even though it wasn't a rugged phone. It it also supported hovering on its touchscreen (called Air View), a feature I don't understand why it isn't present in every phone today, if just for its ability to support "hover" target in web pages. Its hardware implementation is also pretty cheap and clever: it is just a particular way of driving the capacitive touchscreen.