The Canon 24-105 is the lens that beckons me to go back to Canon. You need one. Period. Mortgage your house, sell your car, donate plasma, give a kidney, whatever it takes. Just get the money and buy one. If you want a good lens for street photography with a convenient zoom range, this is it. You could, of course, use a 24-70 and 70-200 instead, but street photography doesn't alway allow the time to switch lenses. Just get the 24-105.
IMPROVE PHOTOGRAPHY LLC IS A PARTICIPANT IN THE AMAZON SERVICES LLC ASSOCIATES PROGRAM, AN AFFILIATE ADVERTISING PROGRAM DESIGNED TO PROVIDE A MEANS FOR SITES TO EARN ADVERTISING FEES BY ADVERTISING AND LINKING TO AMAZON.COM. WE ALSO PARTICIPATE IN AFFILIATE PROGRAMS WITH BLUEHOST, CLCJ, SHAREASALE, AND OTHER SITES. WE ARE COMPENSATED FOR REFERRING TRAFFIC.