Search aliexpress for X99 dual socket motherboards.
The big Taiwanese manufacturers are chasing the AI dragon.
https://www.digitimes.com/news/a20251021PD219/ai-server-asro... (Oct 2025)
OTOH, now I read small Taiwanese manufacturers who are left out of the Nvidia supply chain are reverting to DDR4 motherboards because of the DDR5 shortage. Strange times.