Favorite that I've seen? Two from the 80s come to mind, Lou Reed playing the Masonic Temple after New York came out, just him on accoustic guitar. Nick Cave doing an accoustic show with a piano at the now defunct Pine Street Theater...and my 1st show after the Covid experience, my 1st concert after 2 years, Frank Turner and The Sleeping Souls at the Roseland Theater in July. Part of his 50 States in 50 Days Tour...it was definitely a Gathering.