Sentence examples for such group from inspiring English sources

The phrase "such group" is correct and can be used in written English.
It is typically used to refer to a specific or particular group that has been previously mentioned or is understood by the context. Here is an example: "The study focused on the behavioral patterns of such groups as teenage girls and senior citizens." In this sentence, "such groups" refers to the mentioned groups of teenage girls and senior citizens. It could also be used in a different context, such as in a sentence discussing different job opportunities: "I am considering job offers from such groups as startups and large corporations." In this sentence, "such groups" refers to the mentioned job opportunities of startups and large corporations.