@bss
Yeah, I use Roll20 for mine as their #13thAge character sheet is top notch, but it's almost all "here are photo references for where you are/major NPCs" and theater of the mind.

The kids still prefer a battle map for major fights, so I'll yoink things off #ElvenTower (lots of cool stuff for patrons), but I prefer it when I can just wing it.

If you haven't run it, #FengShuiRPG is a great system for teaching yourself high octane Theater of the Mind fights. The skills carry over.