Certainly not in Germany. I am resident here, but not entitled to any benefits. I can use the health system because I pay health insurance like everyone else - that'S it.
Most countries have the same problems with the people that live there, so they usually do not welcome people who are not residence of that country. You have to have a work permit for that country in order to get a job unless you get paid under the table and they you would not be able to claim any benefits anyway.
Certainly in France. For years there has been a 'commune' of unemployed young Brits in the South of France supposedly looking for work and claiming French benefits. They often come home for the winter.
Get an "immigrant" family to go round the EU trying to get benefits in each EU country, and find out in which country it was easiest to get benefits, and how much they could get.