After playing this game for a while I feel like we've all experienced the moment when our bankroll reaches 0 after scuming for specific glyphs+altars combo or trying to do the infamous, now obsolate, Troubling Times part 6.
At the moment each trophy yields 150g (assuming you did the Horiatio quest) and, at least for me, the numbers haven't changed at all no matter how many repeated runs I do. Hopefully I'm not the only one, so to exploit this fact I recommend doing Hobbler's Hold runs with Bet on Boss as preparation. The dungeon is brainless and easily doable within ~2 min, pick whichever class you prefer. Each run gives 300+ gold and I really doubt you can farm the gold at a faster rate. The new 5x mod for a trophy sure is nice but it doesn't necessarily pick the easiest dungeon. So yeah, if you are in a need of some quick cash try it!
Hopefuly this will help someone.