OpenGameArt.org
Orchestral: Our Journey Awaits
Credit line
"Orchestral: Our Journey Awaits" by Techspired Minds licensed CC-BY 4.0: https://opengameart.org/content/orchestral-our-journey-awaits Author's attribution notice: Soundtrack by JoschJava - "Our Journey Awaits" (2020) https://opengameart.org/users/joschjava
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.