Rapid-Fire AEB for M-Series ?

I shoot most of my stills using AEB, and rapid sequential shots are quite important for HDR and other stuff. (The original G7X was abysmal, for instance.) I am not familiar with the workings of the M-Series Canons, and wonder if anyone out there can comment on which M-Series has good/bad time lag between shots. (Other camera features are not as important.) Thanks in advance.