You can get a nice sample of papers using VVV data using the Astrophysics Database System [0]. I mostly study other galaxies, which usually aren't variable on human lifespan-like timescales. Stars can vary on these shorter timescales, and VVV has compiled a huge list of those objects.
At a quick glance, I'd say some interesting results include: * New star clusters discovered in our Galaxy [1] * Galactic maps of dust reddening and stellar metallicity (enriched elemental abundances in stellar photospheres) [2] * Galactic maps of stellar ages throughout the disk plane [3] * Cataloguing other galaxies behind the plane of our own Galaxy [4]
[0] https://ui.adsabs.harvard.edu/search/fq=%7B!type%3Daqp%20v%3... [1] https://ui.adsabs.harvard.edu/#abs/2011A%26A...532A.131B/abs... [2] https://ui.adsabs.harvard.edu/#abs/2011A%26A...534A...3G/abs... [3] https://ui.adsabs.harvard.edu/#abs/2019A%26A...623A.168S/abs... [4] https://ui.adsabs.harvard.edu/#abs/2012AJ....144..127A/abstr...