In the “Create” section of YouTube, you'll find its audio library. The WFMU radio station manages the Free Music Archive. Unminus is another website for downloading free music. This site is different from all the others because the tracks come with a Creative Commons Zero (CC0) license.
If you're not familiar with Creative Commons licenses, the CC0 license allows you to use any work free of charge, for personal or commercial purposes, edit it as you see fit and without attribution. This means that you can do whatever you want with Unminus's music and you don't have to add a link to it in the YouTube description or include it in any credit circulation. For many years now, musician and YouTuber TeknoAxe has been making songs and scores, becoming a great source for downloading music for free because anyone on the Internet can use it for free. Most of these tracks are electronic dance, rock and metal music, but there are also many thematic compositions.
Listen to some songs and you might think: Hey, I've heard this before. This is because TeknoAxe's music has already been widely used on YouTube. To see their latest music, you can follow the TeknoAxe YouTube channel. He usually uploads a new song every week, and this is a good way to find a new sound for your video before it becomes popular.
Once you've become a member, you'll be able to view the full thematic music catalog, which includes music from several unique artists. But as long as you follow the requirements, you can download free music and use a professionally created song for your videos. After downloading the music for your YouTube videos, Twitch Streams and Instagram videos, you can edit it to your liking to create interesting and impressive videos.