My current camera setup is fairly simple: I use a Canon R10 body and rotate between three lenses - the Canon RF 100-400mm, the Canon RF 35mm Macro, and the Sigma Contemporary 10-18mm for the RF mount. The crop sensor on the R10 increases the effective focal lengths by 1.6x, making the 400mm end equivalent to 640mm on a full-frame sensor.
For filters, I mainly use a Hoya CPL filter for landscape shots - it helps boost contrast and manage reflections on water or glass. I also have a Hoya 10-stop ND filter for daytime long exposures, though I haven’t gotten any results I’m happy with just yet.
For astrophotography, I use the Move Shoot Move Nomad Tracker. I’ve only used it a few times so far, but I’ve had success with 60- and 90-second exposures without any noticeable star trailing.