The Helios lenses have really grown in popularity over the last few years for their classic rendering and crazy swirling bokeh. But are they really any good? With all the awesome new third-party lenses out of China or Japan, the Helios lenses no longer get as much attention as they used to, but they're still fun lenses to shoot with if you can get a good copy.
If you're looking to get started collecting old vintage lenses from the 80's and 90's, then the Helios 44 series is a great place to start. They are known for their beautiful large swirling bubble bokeh. There are several variations of this lens all with different character. They are all similar and different but built with the same goal - to copy the Zeiss Biotar.
Lately I've been shooting quite a bit with the Helios 44-2 and other old vintage m42 manual focus lenses from the 80's. While shooting with manual lenses takes more time and isn't always as precise, it's much more rewarding and you feel like you have complete control of every shot you take.
The Fujifilm X-Pro 2 as of late, has been my favorite camera to use for incidental photography. I kind of just leave it around so it's very accessible, near the front door or wherever and grab it whenever I go outside. Aside from my X100F, it's become my grab it and go camera with the advantage of swapping lenses depending on the mood I'm in.