Andreas Spiess found a a Raspberry Pi replacement for Home Assistant:

And suggests to upgrade your Raspberry Pi to a Homelab instead of buying a Raspberry Pi 5:

The Meditation Research Institute Switzerland (MRIS) suggests to choose these alternatives if possible:

The fate of the Dreem 2 headband as a warning sign for Raspberry Pi users?

the Orange Pi 5 with Ubuntu and the Mango Pi Quad with Debian, and eventually the Mango Pi Pro with Ubuntu:

For people who want to be prepared on the bankruptcy of Raspberry Pi Inc. – Orange Pi 5 plus & Mango Pi Pro & Ubuntu

If these SBCs work for your application.