I recently spotted the Tokmas CI7N170SM TO-247 part on LCSC. It seems like a pretty neat part for building non-QRP HF amplifiers!
This could be a better part for our Baby QRO amplifier.
Datasheet excerpts:
The full datasheet is available here.
In comparison, here is how a professional RF part (MRF300AN) looks like:
That 272W maximum power dissipation figure is crazy good but switching characteristics are not that great (fast).