The phrase "a dependable source for" is correct and usable in written English.
You can use it when referring to a reliable provider of information, products, or services.
Example: "The library is a dependable source for academic research materials."
Alternatives: "a reliable provider of" or "a trustworthy source for".
Meanwhile, as the media in general adjusted to a new world of internet competitors, squeezed budgets, and recycled content, the papers became a dependable source of polemic for other outlets.
Vast amounts of groundwater stored in the primary deep aquifers serve as a dependable source of water for the central and northern regions of Saudi Arabia, and, to a lesser extent, the other countries of the peninsula.
Did you have parents who were dependable sources of love for you, as well as who role-modeled accessing Spirit as a dependable source of love for themselves?
The other major part of their job is to role model accessing God/Spirit as a dependable source of love for themselves.
Administration officials say that the White House clearly agrees, and it needs all the Jewish friends it can get; American Jews have long been a dependable source of campaign contributions for Democrats.
Scaled up, the technique could provide a dependable source of replacement platelets for patients.
Local tourism departments, along with members of the Hatfield and McCoy families, are working to transform feud folklore into a dependable source of jobs and revenue for Eastern Kentucky and West Virginia, a region grappling with the decline of coal.
In the old days people bought long subscriptions for concerts, giving orchestras a dependable source of advance income.
It's a dependable source of release.
In an administration in which so much has gone awry, Michelle Obama has become a dependable source of good news.
