Toronto's been covered pretty well, and since there are so many suburban highrises it's hard to find examples that really stick out.
The African PwC headquarters in Johannesburg comes to mind, which is actually located in Midrand and about equidistant from the Joburg and Pretoria CBDs:
From Google maps:
https://goo.gl/maps/LxquCycE5iULGiqG7
https://goo.gl/maps/r3pyb7gS61159Ew46
https://goo.gl/maps/8FkAqXcWruDag95QA
https://goo.gl/maps/ivDtRmtMxJ9q9vCB8
Subiaco.co.za
https://www.engineeringnews.co.za/ar...cbd-2017-02-27
It's part of the Waterfall City mega development which contains the country's largest mall (Mall of Africa), a huge amount of office space with the aims of a creating a new suburban CBD, and multiple high end residential developments ranging from estate subdivisions to condo towers.
Right now the tower sticks out across the Veld for many km in either direction but is at least fairly decent looking. The development itself is pretty horrible and follows a lot of the worst in suburban planning trends, though gives at least some lip service to pedestrian experience and public transit access (mostly feeder buses to Midrand Gautrain station). Eventually the tower is supposed to be joined by a taller one as well as more midrises, but I'll hold my breath for a while.