I really can’t agree with you though that all those sources are from the Falun Gong

I can connect all of your sources to an obsession with Falun Gong incredibly easily.

First link: Google the author, Ruth Ingram. This is a fake name used to spread literally nothing but organ harvesting content that ALL mentions Falun Gong.

Second link: Wang Guoqi's claim is solely about Falun Gong.

Third link: Is just a wikipedia page so we should be tossing this out anyway. Several citations are Falun Gong though.

Fourth link: Relies mainly on presenting ChinaTribunal as a legitimate court tribunal by real courts when it is in fact a propaganda outlet. This "independent tribunal" gets presented as such and its conclusion is dadadadadadadaaaaa - that Falun Gong members are the primary source of organs that China harvests. It then vaguely connects this to Uighurs later in the article but offers literally zero evidence, only accusations.

You will not find anything on this topic that you can disconnect from Falun Gong. It is impossible because Falun Gong is the source of it. I can stick around and enjoy going down this rabbit hole with you though if you want to try, I am quite happy to be a wall you bounce things off, it's pretty crazy.