Mostly older stuff, some might still be found in my area if you look deeper:
Interior Lighting:
Louvered fluorescent fixtures, especially if mounted on stem mounts
100w, 125w, and 175w MV recessed cans, seems like every mall built from 1970-1990 had them at one point here. They slowly went away in the 2000s with only a few places having working examples.
8ft fluorescent strips or recessed strips, was common in older supermarkets and department stores.
CMH track and recessed lights, they took off after the mid 2000s but also went away fairly quickly once LEDs ere cheap.
4x4 fluorescent troffers, a lot of older 1960s era department stores had them. Unfortunately store renovations and closures saw the end of most of them.
MH highbays These were the mainstay in big box stores from the 1980s to the mid 2000s. Replaced by T8/T5 fluorescent highbays and later by LEDs.
Outdoor/Roadway Lighting:
Powerlite cobraheads, especially the B2255, B2227, and R47
Westinghouse OV15 and OV15
McGraw Unidor 250 and 400
Any incandescent traffic signal but the old
CGE signals in particular (12-8-8, 8-8-8, and 12" pedestrian configs) that were common before the late 2000s. Some places still have a few CGE signals in use but LED converted.
Cooper URB gumballs, technically still around for the time being.
The old Philips and Thorn SOX 135 and 180 luminaires on the municipal expressways here. Removed in stages beginning in 1997 to 2005.
The Steel-Art Illuminated Street Signs that used to be on every pole in the central part of Toronto and in some subdivisions. They were incandescent and were phased out starting in 2000. A few lingered on with long dead bulbs and I think the last one in Toronto proper was removed in 2020. The ones pictured are in a subdivision that opted to keep their signs...they even got converted to LED.