When I was farming dynamis last month I used Uka/Mayakov/Ulmia/Joachim/Koru on THF/DNC in valkrum. Was pulling 700-900 currency a run. The problem is there is barely enough mobs for 1 person. If another person comes you either have to move spots or the numbers take a hit.
I was just looking at Valkurm and I think I'll try there next. In Qufim I was doing snolls+weapons->tigers->krakens so I still had to run across the zone after tigers to get to the krakens. Mumor I spams steps as well so you have 3 trusts doing steps at the exact same time, had Qultada and Luzaf for the odd QD proc with Luzaf's recent update.