I can recommend "The Triumph of Injustice: How the Rich Dodge Taxes and How to Make Them Pay" by economists Emmanuel Saez and Gabriel Zucman for some concrete ideas on how to fix this problem.
Some ideas seemed a bit unlikely, but overall great refreshing read in my opinion.
Counterpoint here: I travelled for about 8 months about 7 years ago (already? damn!) and it even though it didn't change me directly as a person, it did instill an ever-present hunger to see more of the world. More importantly, it made me marry my foreign travel-partner which has without a doubt been very transformative ;)
A bit far-fetched to link this book to the current COVID crisis, but I actually read it a few month ago and really enjoyed it! It's obviously very specific from the point of view of an old European intellectual and filled with nostalgia, but a fascinating read nonetheless, with some great portraits of famous artists from his time.
His rant on passports feels very relevant in these times of ever decreasing personal freedoms and privacy. Hard to imagine the Habsburg empire was actually not that long ago.