I cannot vouch for every suggestion here, so please do your own research. Here my intent is to facilitate your search. My choices are the ones seen on "Favorite Programs." Keep in mind that libre software is usually more respectful of you as a user and owner of the software, as well as being respectful of your privacy. Having said that, not all of them have privacy as a main concern, so if that is important to you, please consider the section for privacy respecting software.
1) CLI Libraries
2) GUI Libraries
3) Privacy focused Libraries
1) CLI Libraries
A curation of TUI and CLI software.
2) GUI Libraries
Ethical.net - ethical library of alternative software.
FSF - open-source recommendations.
Gentoo - open-source recommendations.
Github - alternatives to bloatware.
Libreplanet - library focused on communication.
Switching - ethical library of alternative software.
3) Privacy focused Libraries
Awesome Privacy - general library.
Dig Deeper - general library and guides about privacy and security.
Prism Break - general library.
Privacy Guides - general library.
Privacy Tools - general library.
Shadow Wiki - library concerning emails, browser and phone usage (access the link via Tor).