The thing about socialism is it's a group of ideas more than a single idea. Unfortunately this leads to a lot of infighting which, as we know, the left is very good at.

On the one hand you have people like Jeremy Corbyn and Bernie Sanders who push for things like nationalised/free healthcare, public transport. On the other you have a plethora of shades of anarchists who want to dismantle the ideas of nationhood and government entirely. It can be hard to reconcile the fact that these two groups are on the same broad side.

I guess the best way to describe socialism in very broad terms would be the idea that society should be set up as systems that benefit everyone who is part of society, not that people should work to benefit and perpetuate the systems.

I don't have resources, but I would suggest looking into anarchism in Spain - there have been some successful anarchist communities built there that lasted quite some time before being deliberately destroyed.