What form factor are you looking for?
The Jupiter is supposed to be shipping soon and ticks all your boxes, though the preorder might possibly be sold out
Milk-V Jupiter
8 Cores SpacemiT K1/M1
4/8/16 GB RAM option
1x 3.5mm audio jack
1x HDMI
Wi-fi and Bluetooth onboard
1x PCI Express x8 slot
1x M.2 slot
No SATA
4x USB + front panel usb header
OS support: Ubuntu, Bianbu OS, Fedora, Buildroot
It’s a most deal RISC-V board on this quarter, isn’t it?
Milk-V Pioneer
64 Cores Sophgo SG2042
4x DDR4 RDIMM slot
No audio jack
No onboard video output
No wi-fi and Bluetooth onboard
1x PCIe x16 slot
1x PCIe x8 slot(slot form is x16, only x8 of signal line is connected)
3x M.2 slot
5x SATA
OS support: Fedora, Arch, OpenSUSE
ideal for workstation.
HiFive unmatched
4 Cores SiFive U740
16GB RAM
No audio jack
No onboard video output
No wi-fi and Bluetooth onboard
1x PCIe x16 slot
2x M.2 slot
No SATA
OS Support: Yocto, Ubuntu, Debian, OpenSUSE
It’s well discounted due to discontinue.