Wireworld has your back. This cable was the one that actually made realize cables make a difference. I use it to connect my imac to desktop DAC.
https://store.wireworldcable.com/products/supernova-toslink-optical-audio-cables?variant=950544883
https://store.wireworldcable.com/products/supernova-toslink-optical-audio-cables?variant=950544883