Open hardware single board computer server recommendations?

Hi, I am looking for a SBC to self host stuff on. I would like it to be somewhat open hardware (manufacturer provides schematics and drivers are open source). Which is why I initially wanted to buy a banana-pi router but after reading a post in this /c/ I found that mainline linux support is fairly rare in these arm/riscv SBCs.

So I was hoping someone more knowledgeable would help me find some options. Here are my "wants":

• Low power drain
• Open source hardware and software
• Mainline linux support
• 2 ethernet ports, at least 1Gb
• at least 2GB RAM - could do with 1GB I suppose
• a reasonable way to connect 2 SSDs and 2 HDDs - ie. 4 sata ports or one pcie port (not through USB)
• EU seller. Not required but I hate dealing with import taxes and I like guarantees
• Finally I need it to have "wake on power", so that it can start automatically after power outage

The more I search the internet, the more it seems that this mythical computer does not exist but maybe someone knows more than me. Thanks for your replies.

Edit: I'm likely going to settle with the Visionfive 2 since it has official ubuntu support and I won't have to rely on some hacky linux image provided by the manufacturer. It has 2 LAN ports and an M.2 NVME which I'm gonna split into 4 SATAs. Also 8GB RAM is plenty for the lightweight stuff I want to host, maybe even Nextcloud won't be that painful.

Final note: I'm actually not sure how much is the Visionfive 2 open-source but it seems better than intel and AMD stuff so I'm willing to compromise since I actually want to buy something that exists. But anyone reading this in the future beware that I don't know whether it's really open source to the last logic gate. (likely not)