There’s some privacy-focused free (libre) services that help people be secure and able to communicate and browse/surf safely and free. It’s a shame that we don’t have a giant tech company that respects users and treat them the way they should. Of course paying these services and making donations is one way to support them, but it’s not the only way.
One way that you can help them is to make use of their services in ways that doesn’t cost them much. For example, if you use a secure privacy-focused email service, you can download your emails and delete them from their servers. This can help them have more space available on their servers. They may provide services free of charge but it’s not free. It costs them.
Or if you use a cloud account to store your files, you can delete files you won’t use or are unnecessary. Don’t keep them. We all know some files or contacts that we won’t use ever but we keep them because we’re actually afraid. If you don’t use an account or service, delete it. Don’t keep it because it can help that service keep being alive. It’s important.