Well yeah, but here's a "secret".
No eldar soul finds peace.
The craftworlders and exodites place their souls in an everhungering infinity circuit, keeping them in a half-awake state, forever.
The Dark Eldar don't even have that, they have to rely on trying to live forever to avoid slaanesh getting their souls, eternally cloning their bodies.
The only other option is to turn your soul up to another god. The Exarch-soul-constructs, whose souls are merged together, and who exist forever, until their souls are used to feed Khaine or a Phoenix Lord.
Or the Harlequins, who give their souls to the Laughing God, and give up their freedom for his mad call.