The phrase "advocated among" is correct and usable in written English.
It can be used when discussing support or promotion of an idea or action within a specific group or community.
Example: "The new policy was widely advocated among environmental activists who believed in its potential benefits."
Alternatives: "promoted within" or "supported by".
They advocated (among other things) that inheritance rights be abolished so that capital could leave the hands of self-seeking capitalists and be placed at society's disposal.
The partnerships they advocated among thinktanks, environmental NGOs and industry associations can help businesses anticipate Black Swan events, and to think the unthinkable.
"Mr. North readily admitted to the Committee that he opposed the Pebble Mine and advocated among his colleagues that the agency use the Clean Water Act to stop it".
(Earlier in the summer, he also gave a surprising speech on social policy, in which he advocated, among other things, a major increase in spending on anti-poverty efforts).
In the political ferment that followed the outbreak of the French revolution, James Losh was one of many who passionately advocated, among other causes, voting reform and education for all, including women.
I suppose you would call him an economic populist: he advocated, among other things, unionisation, shrinking government and reducing taxes, abolishing the Federal Reserve, nationalising resources and seizing private wealth during wartime.
How do global activist networks decide the particular causes for which they advocate among the many problems in need of solutions?
ETC has been advocating, among other things, that production of nanotechnology products be put on hold until more data is available on potential health impacts.
Yue has become one of the most outspoken voices on the environment in China, advocating among other things, for tighter government regulations on insulation and building standards.
The Assembly Democrats have been holding out for more money for education, health care and environmental protections, while their Republican counterparts in the Senate have been advocating, among other things, tax incentives to help the biotechnology industry.
The proposal has been advocated by, among others, the Republican Study Committee, a conservative caucus in the House of Representatives.
