I've recently made a single visualization for a single piece of COVID-19 data that I care about. What you personally will find new and exciting and at the right complexity isn't something anyone else can answer.
One technique I've seen and used for making things is:
Come up with 100 different ideas (no idea is stupid)
Pick 10-20 and flesh them out a little more (what does it look like, don't start working on it)
Of those, pick 3-5 to try and do. Swap between them whenever you get stuck.
Eventually, you'll have one that you like working on to see through to completion.
I've recently made a single visualization for a single piece of COVID-19 data that I care about. What you personally will find new and exciting and at the right complexity isn't something anyone else can answer.
One technique I've seen and used for making things is:
Thanks! This really helped!