The alloy wheels from a 2018 or older 800 Tiger should work for your Tiger but may require different spacers between the forks as yours is a 21 and the front wheel from an XR or XRT are 19 inchers, as well as the swap from spoked to alloy. Would require lowering the front fender or swapping for the XR front fender as well, unless you prefer the 1" gap between fender and tire that the swap will create.
The 900 Tigers were a whole redesign with different brakes, so a swap is highly unlikely.