Related to the discussion of boosters earlier in the thread, here is an article supporting seeking out particular immunization/booster shots:
Antibodies produced after Pfizer and Moderna vaccines".
Some comments point out that the small sample size may be responsible for the results, so this or other anecdotal evidence should not be evidence that this conclusion is conclusive.
The CDC has a chart specifying which boosters are recommended. I couldn't cut and paste a formatted version of the information from the Veterans Administration website, so
here is a link for the whole page , even though I just want to link to the chart in the middle of the page