"wide range of people" is correct and usable in written English. You can use it when you want to refer to a variety of people with varying backgrounds, opinions, levels of expertise, etc. For example: "The panel comprised a wide range of people from different walks of life.".
Adds Berko: "We need a wide range of people.
But I never learned how to mix with a wide range of people from different backgrounds.
"We put together a program that could expose and satisfy a wide range of people.
"Creating a puppet show requires a wide range of people and special skills.
"I'm only 15, but I am able to reach a wide range of people," she explains.
He has a lot of feeling for a wide range of people.
"His books, novels and plays reached a wide range of people," Ms. Tupholme said.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com