Eelo is a new non-profit project started by the founder of Mandrake Linux with the goal of creating a fully open-source smartphone environment (Android, associated software, and associated services). It is in the early stages but they already have some functioning Google-less prototypes.
https://www.notebookcheck.net/Eelo-the-Google-less-Android-OS-from-the-creator-of-Mandrake-Linux.274272.0.html