Sideposting here from my earlier post:
How rare are visible Lunar occultations of Mercury from a given location?
Using the Occult software, I was only able to find three within the next 10 years for the location of Washington, DC, USA. I am not sure how accurate that is though.
2021-11-03T15:49-04, Solar elongation 15 deg, altitude 19 deg, apparent magnitude -0.46, 2% Lunar phase, 85% Mercurian phase
2022-10-24T10:17-04, Solar elongation 10 deg, altitude 35 deg, apparent magnitude -0.83, 1% Lunar phase, 94% Mercurian phase
2030-04-04T09:51-04, Solar elongation 19 deg, altitude 26 deg, apparent magnitude +0.22, 3% Lunar phase, 40% Mercurian phase
I figure the Solar elongation is the most important factor for safety, making the occultation of November 3 the best one until 2030, at least for observers in Maryland, USA.