You know what this fandom is sleeping on? The Witch x The Amazing Devil edits. I mean come on people! the vibes of their songs fit so well with the thematic journey of our main characters. Plus Joey Batey is one of the lead singers so it would sound like Jaskier is narrating. How much better can it fit. Here's some songs I would use if I knew even a lick about editing:
Geralt, Ciri and Yen - Inkpot Gods And what you see is not the dark/
It's just the gods upturning ink pots 'cause they know what you'll become
Geralt and Ciri - Welly Boots You'll say, "I've been so scared/You left me here behind, do you not care?/How the fuck am I supposed to carry on without you here?"
Ciri and Yen - The Calling I'd burn so bright it blinded/Now I know that light guided me here
Yennefer - Pray If you knew all that I'd done/The words that shone are all but gone, oh whoa/The hearts I've broken, the minds I've woken/Sweet nothings are screamed, not spoken
Jaskier - Farewell Wanderlust Because farewell wanderlust, you've been, oh, so kind/You brought me to this party, but you left me here behind
Honestly that last one could be a parallel of Jask and Yen. What Jaskier thought life on the road would be vs What Yen thought life at court would be.