Traveling to Europe is not possible right now and many small, local businesses are suffering because of zero income. How can you support them?
Write reviews of your positive experiences with them. There is a multitude of places to leave your reviews, their website, their Facebook page, their Instagram, Trip Advisor, Google, or Yelp.
All of the small hotels/pensions, restaurants, and tour companies will appreciate this.
Perhaps Rick could encourage this?
Additionally, if you were here in Europe this past month and have now came down with the Covid virus, please contact your tour guides and your hotels and let them know so they can self-quarantine.