A subproblem for factory farming is to expand the evidence base showing how to persuade people to reduce meat consumption. One possible avenue is to encourage research in academia. If you are interested, it might be worth reaching out to https://faunalytics.org/ to see if they are interested in coordinating.
This is potentially a high leverage area since a lot of money is raised to reduce animal suffering without a good empirical research base. Having more research could multiply the effectiveness of charities looking to reduce factory farming.
I’m interested in helping organizations collect more data, using independent surveys of households to measure bed net usage, as well as surveys around deworming programs. One organization that conducts independent surveys is PMA2020. They currently have family planning and WASH surveys, but may add additional modules in the future.