Then you definitely need Lo-FI music and a lot of it, so that at least some of the content does not repeat music. And if it rarely repeats between different YouTube channels, then they won't suspect anything. This is the service where you can find royalty free lofi. This service is one of the largest where you can find copyright-free music. When you buy a subscription you will receive a document certifying that the music is royalty free.
Many Lo-Fi music lovers, more often than not, love rap music as well
I found a very cool site about world rap music - 50 cent, Drake, and many others, I recommend it - https://sandrox.com.br/.