To be honest, i didn’t even know I3C was a thing, and i still don’t know all the details - but that doesn’t keep me from looking at devices for it.
dToF LiDAR sensor:
https://www.mouser.se/ProductDetail/STMicroelectronics/VL53L9CXV0VE-1?qs=Omd18uQ5iJFry6Pb1UJSJQ%3D%3D
What weird and wonderful stuff have you found?
Not a device I found, but in theory it should be possible to emulate i3c on a RP2350, which would enable a lot of fun stuff. So far I mostly only found the other direction, which acts as a controller and not a target though: VL53L9-Arduino/VL53L9-Pico/lib/i3c/README.md at main · earlynerd/VL53L9-Arduino · GitHub
There is also a list of i3c devices here: I3C Devices Database - MCUs, Sensors & Interface ICs | Binho
I3C is I2C compatible (for 400kbps and 1Mbps) so not for everything we would need to select from I3C components for TOH