It’s illegal in many countries. So you won’t find the communities or sites that you seek. You’d have to go underground or offline. Or to some pretty lawless region.

Since most people don’t want to jail, they don’t want to get involved in such conversations publicly or even on traceable IP-addresses (support = accomplice, aiding & abetting to a crime, etc)..

There’s social and religious taboo around voluntary death. Since most people want to fit in, they don’t want to get caught expressing seriously taboo views on death. So the community you seek doesn’t want to be found or be seen by the generally judgmental masses.

Even if you just had the view that you dunno about suicide, are neutral, agnostic, just wanted to explore the philosophy of suicide... taboo, just to be open about it...

You won’t find what you seek.

There are ‘method’ resources and webpages, but since I don’t want to go to jail, and I don’t know what your deal is, I can’t share any information.

Good luck,