The phrase "already broadening" is correct and usable in written English.
It can be used to describe a situation or process that is currently expanding or increasing in scope or range, often implying that this expansion has begun prior to the present moment.
Example: "The company's market reach is already broadening, attracting new customers from different demographics."
Alternatives: "already expanding" or "already widening".
No wonder online sales are already broadening the customer base.For record stores, though, this is glum news.
Chipmakers are already broadening their products to emphasize "walling-off" functions, with one example being ARM's TrustZone.
The violent aftermath of the Arab spring provided a new motivation and new opportunities for extremists all over Europe, and militancy in Belgium itself was already broadening and deepening.
The company is already broadening its offerings into such areas as pre-aid credit cards and accounts wherein paychecks are deposited directly into a credit/debit card accounts.
While initial products were GSM-based, OSS Telecom Technology is already broadening its product lines to include local loop billing and convergent billing capabilities, which are key customer requirements.
With nine museums from each country participating, the exchange has already broadened horizons through several imaginative shows.
But the news articles about her first few discoveries have already broadened public awareness of the extent to which the United States depended on slaves to build the national as well as the Southern economy.
Food scandals, concerns about the environmental impact of farming livestock and an advertising campaign fronted by multiple gold medal-winning runner Mo Farah had already broadened Quorn's appeal beyond vegetarians.
Google, meanwhile, has already broadened the scope and usefulness of its devices, a far cry from the first Chromebook models.
It has already further broadened and deepened analytic philosophy and shows promise of promoting serious engagement with continental thinkers.
The distinction between different types of planet has already been broadened so that the solar system is now thought to contain three, rather than two, types.
