What kind of maps do you prefer? Note this about reference maps in modules, one page dungeons, and the like, not necessarily for VTT use.
Do you like something like this:
dysonlogos.blog
Or
blog.trilemma.com
I find isometric maps useful for expressing verticality and they look cool, but they are harder to draw and you are limited in how much you can express in cardinal directions, if that make sense.
Do you like something like this:

Inside the Temple of Kuvartma
All the maps this month on the Dodecahedron will be focused on the theme of ruins (and sometimes the dungeons within & under). Even the maps list for the Release the Kraken this month has been …
Or
Do it for the Beast
Then the strange man, still holding my wrist, drew his knife across the palm of my hand. Before the pain could set in, the most wondrous thi...
I find isometric maps useful for expressing verticality and they look cool, but they are harder to draw and you are limited in how much you can express in cardinal directions, if that make sense.