relatively niche old death metal

I have no idea how much it should be “relatively niche” and “old” but here’s a few sources i’m using myself for such type of content:

https://metalarea.org/forum/

https://en.metal-tracker.com/

https://deathgrind.club/

https://in-the-fog.ru/

https://vk.com/sbdm_community

Most of them require a sign-up