I still haven’t been able to find the blueprint I am looking for.
i had success farming cronely nemesis and order/kymon nemesis on elite. you should just run past everything until you find them. their spawns are easy to circuit
Crucible is about the best source of anything rare, assuming you have a character who can reliably achieve a good loot result.
In the main game, nemeses are the best source of any blueprints. Treasure Troves are also pretty good.
Unfortunately my game crashes repeatedly on Crucible. It’s treasure trove farming for me.