All the social media platforms that I know about are free to use, if you have a problem with them then don't use it. Foundation education here in the UK is free, medical care here in the UK is also free; they are funded by public spending but they are free at the point of service. The Wikipedia encyclopedia is free to use, I read many articles on there and learn many things. I have learnt about history and things like that.
I was going through the free TV apps on my smart TV stick and was amazed by how much stuff you get for free. Pluto TV, ITV player, You Tube, they are all free to use.
There are many software platforms that are free to use. Most of the Linux based os systems are free. All the main programming development kits are also free.