I wish cities other than Varrock had life

It kinda feels like the majority of cities in Glenior are totally dead, Varrock is the only one with any real activity going on because of the GE, it's basically the hub of the game. I dunno what could be done to change this, but it's a shame, because all the other cities are so cool. Varrock is unironically probably my least favorite city, probably from over-exposure to it.

One idea I had is maybe multiple GEs with themes for each city, with different broad categories of items having less tax at these particular GEs than at the main GE in Varrock. Like just as a random example, Falador's exchange could have a lower tax on mining-related stuff, Ardougne has the zoo so they could have a lower tax on animal bits like hides and bones, etc. Obviously this will never be implemented, but I thought it was an interesting idea.

What ideas do you have to give other cities life?