List of currently used Cisco switches and routers in the workplace.

Hi all

I remember coming across a very useful post a while back on this subreddit detailing the most up to date used devices in the workplace (not for study labs) however I can't seem to dig it up again!

Would anyone have a similar resource? I've been out of the industry for a bit and I'd like to catch up on what are the more frequently used routers and switches (both in the DC and branch sites). Ideally I'd like to be able to know what model device to go with in a given situation (branch site or DC).

Thanks!