The phrase "a frequent source for" is correct and usable in written English.
It can be used to indicate that something often provides or contributes to a particular outcome or information.
Example: "The internet is a frequent source for misinformation, making it essential to verify facts before sharing."
Alternatives: "a common provider of" or "a regular contributor to".
One employee said that Trump was also a frequent source for Enquirer stories.
A frequent source for national press, Siskind has been quoted in the Los Angeles Times, the Washington Post, the Wall Street Journal and the New York Times.
Health food shops are and will probably remain a frequent source for such products and health advice, but to date they remain unregulated and their employees require no formal education in medical or nutritional science.
The terms of SBA loans are usually quite attractive compared to the offerings of non-bank, alternative lenders, which are a frequent source of capital for companies that don't qualify for traditional loans.
Dukes, a frequent source of aggravation for the club, was suspended indefinitely over the weekend for an incident at a team hotel still being sorted out by team officials.
For example, yellow sand and smog from China is a frequent source of concern for residents of cities in western Japan and Korea.
Disasters have become a frequent source of lessons for leadership teaching, even if the primary lessons are in what not to do.
Complex fistula-in-ano is a frequent source of concern for both patients and surgeons, because of its high rate of recurrence and postoperative anal incontinence.
Kusturica began his professional career as a television director on TV Sarajevo, helming the dramas Nevjeste dolaze (1978; The Brides Are Coming), which caused a stir because of the explicit sex scenes, and Bife Titanic (1979; Buffet Titanic), an adaptation of the short story by the Nobel Prize winner Ivo Andrić, whose works became a frequent source of inspiration for Kusturica.
The high rate of turnovers and layoffs are also a frequent source of stress for video game developers.
Books are a frequent source of inspiration for TV series and movies, and network executives usually try to maintain cordial relations with the authors, at least for marketing and publicity purposes.
