(i donate to journalism orgs across the US [ProPublica, Associated Press, Tampa Bay Times, Salt Lake Tribune, Marion County Record, Muckrock], but far more and consistent financial support is needed than these orgs are receiving today)
We had an economic model that supported both the people and the work; the current economic model supports neither.
I would submit that this one of a great many reasons why the current economic model is problematic.
Go find a newspaper from 2000 or earlier. It will have whole sections (20 pages or so each) of advertising for jobs, real-estate and other classifieds. In some places every government job had to be advertised in the newspaper.
All that paid for the newspaper. Usually before it was even printed.
Thats the source of cost you need to replace.