The Open Home Foundation [openhomefoundation.org] fights for the fundamental principles of privacy, choice, and sustainability for smart homes. And for every person who lives in one. It does this by supporting the development of open-source projects, and open connectivity and communication standards.
In the past year, Open Home has doubled its user base to 2 million households [soylentnews.org]. Music Assistant has also made great strides recently. Music Assistant is a music library manager for your offline and online music sources which can easily stream your favourite music to a wide range of supported players and be combined with Home Assistant. They are also making great progress in voice controls [home-assistant.io] which you can run 100% within your home, or via lighter weight devices and their cloud service [nabucasa.com].
For myself, I started constructing the tinfoil hat for my home (we already have a metal roof) about two weeks ago, replacing cloud controlled smart outlets with ZigBee devices controlled via Home Assistant. I'm getting close to putting ZigBee smart outlets in control of my Google Home speakers so I can just say "Hey Google, Wiretap off." and have them all powered down easily.