First time here! (I occasionally lurked at the old Dpreview but never felt inclined to create an account there, but this Df thread finally convinced me to hop in)
I've had my Df since November 2021 (a sudden deal at Fireside Camera in San Francisco through a Facebook search I did on a whim led to this camera) and have been using Nikon products since 2009 (D40, D5000, D3200, D700, and two different D600 bodies). Always had loved the manual focus stuff in the Nikkor lineup and liked the combo of retro design and lighter camera body weight with the Df.
Since getting the camera, I've brought it to a motorsports event (the Velocity Invitational in Laguna Seca), to three trips to other countries (Philippines, Mexico and Japan), to several concerts, and also just everywhere in regular usage in my daily life.
With all that background said:
Wide-angle: My 16mm f/2.8 AI fisheye is almost always in my bag, even if I only use it a few times a month (nothing else like it in my lineup!) I used the 35mm f/2 AI for a while, but recently got a decent deal on the 35mm f/2 AF-D which is great for close-up (non-macro) shots and is one of my favorite everyday lens choices of late. (The more compact body of the 35 AF-D is more appealing than the larger AF-S successors)
I did get an amazing deal a while ago for the 24mm f/2 AI-S, but it isn't a lens I gravitate to every day. I do own a 28mm f/3.5 AI I got on eBay for $18 years ago but haven't used it in ages.
Midrange: I have numerous 50mm-ish lenses for various needs: an AI-converted 1970 50mm f/1.4, an early Series E 50mm f/1.8, the AI version of the Micro-Nikkor 55mm f/3.5, and the two most recent: the 1987 era 50mm f/1.4 AF whose rendering (especially in people shots) has more character IMO than the 50mm f/1.4 AF-S I used to use on my D600, and now a 1976-era 55mm f/1.2 K (AI-converted) that I just got yesterday off eBay that has been quite fun to try out.
I like the concept of the Series E 50 in making the Df the lightest possible camera it can be, and it renders decently, but I do realize its bokeh doesn't grab me the way either 50mm f/1.4 or my recently acquired 55mm f/1.2 do.
The 50mm f/1.4 AF proved useful when I attended the Los Angeles showcase for kpop group Aespa last year, I basically turned on live view, lifted the camera over my head (and above other attendees' heads) and at f/5.6 was able to get decent pics of the group despite not being right up in front row.
One user on the Nikon Df User Group on Facebook really championed the 28-105mm AF-D zoom so I got a copy and I actually use it a lot for macro shots when at restaurants, since I like the working distance at 105mm better than at 55mm.
I also own a copy of an AI-converted 43-86mm zoom specifically because I want a lens that is very prone to flare, for unique effects and vibe. (And I like the mechanical quality of that lens way better than the Series E zooms I used to own)
Short/medium telephoto: I always have been partial to the 100/105mm and 135mm focal lengths more than 85, though at a camera store I did try out the 85mm f/1.4 AF-D briefly. I have an 85mm f/1.8G AF-S that is decent but I enjoy the rendering from my 105mm f/1.8 AI-S a bit more (and the latter's narrower barrel fits my camera bag much better). Recently got a surprisingly affordable copy of the 135mm f/2 DC and am still learning how to get consistent photos from it, its handling is nicer than the 135mm f/2 AI I used for years but I do have some issues with dialing in autofocus at distances beyond 20 feet.
I also enjoy the tiny 135mm f/3.5 AI as my go-to when I really want to pack light while still having that focal length handy. (Basically same aperture as the 75-150 Series E but lighter and much easier to use!)
Longer telephoto: I did use the 80-200mm f/2.8 AF at Laguna Seca in 2021, but recently bought the 70-300mm AF-P as its replacement to get VR (which does work really well) and to also have a more lightweight package with more reach for my next Laguna Seca visit.