I still see Steely Dan whenever they come to town. There never really was a "band" per se after the first couple albums. Just Donald Fagen and Walter Becker, the two songwriters. At some point, they stopped touring and just produced studio albums throughout the late 70s.
Donald was also the lead singer, and they both contributed some instrumental tracks. But the "band" consisted mostly of elite LA session players... usually a different bunch on every track.
They started touring again in the 90s. Walter Becker died in 2017. But Fagen still tours as: "Donald Fagen and the Steely Dan Orchestra"... or something like that. In any case, it is by-far the best assemblage of high-caliber musicians you can get for a live backing band... completely consistent with who they were as a "band" back in the day.
I'll keep going as long as Donald is singing and picking the musicians. But I really miss Walter's presence, especially his laid-back, slightly sleazy storytelling riff during the middle of Hey Nineteen. Classic Steely Dan, now gone.