The phrase "a broad circle of" is correct and usable in written English.
It can be used to describe a wide range of people or groups involved in a particular context or activity.
Example: "The conference attracted a broad circle of experts from various fields, fostering interdisciplinary collaboration."
Alternatives: "a wide range of" or "a diverse group of".
His father was a wealthy businessman, and his parents had a broad circle of highly educated friends.
This was a spontaneous, half-kidding proposition, made over beers, but a broad circle of acquaintances came to take it seriously.
I learned later that the report was so brutal it was passed around quite a broad circle of agents and industry types.
The Iron Crown of Lombardy is composed of a broad circle of six plates of gold joined to each other by hinges and kept rigid by an interior ring of iron not quite 0.5 inch (1.25 cm) broad.
Pooley added that while he thought Klein was right to recognise a rise in grassroots environmental activism, solutions to climate change would require "a broad circle of non-traditional allies" as well as core activists.
The calf twirls and rolls at the surface, pectoral fins absently waving in the warm, tropical air, drawing a broad circle of breaths at the surface then diving back down to the female below.
But it's as though we feel we have a broader circle of truth.
Instead, she invited a broader circle of people who were asked to cobble together amounts like $3,000 or $5,000.
Ms. Wrightson Cross's post was picked up by a food blogger who has tangled with Kraft over the use of yellow dyes, who fueled a broader circle of suspicion.
Crowded as the unicorn club may be these days, that number, and those backers, makes PagerDuty a startup of interest to a broader circle of industry watchers.
Critics guffawed, but Barr says the study helped the organization focus on the mission of discovering new talent and promoting it to a broader circle of readers.
