I don't like Soundcloud myself, cause the service is itself making a lot of copyright infringements. I used to download songs from there, but then I learned that people might just make a "remix" of some songs and then just license it as CC-BY. That will lead me to have copyright notification.
Now what I've started thinking is that the different countries have different copyright laws, so probably with some random language, I would be able to find new collections. Have not the time to check this tho, cause making searches with random languages is little tricky job to do.
If you want a hassle-free site I'd recommend https://www.epidemicsound.com/ for a recurring monthly fee of $15.00 USD you can have unlimited downloads from their tracks plus they even offer each song broken down into stems i.e. bass tracks, melody tracks, etc..
For a while, I was using them for my videos but had to stop to save on $$$ when you on a fixed income.
Another site to consider is https://artlist.io/, unfortunately, they offer only a yearly service fee of $199.00 USD
If you have upgraded you Tubebuddy account they offer a perk of 20 song downloads a month from AudioHero. not sure if that is still in place or not. The one time I used a song from AuidoHero I was hit with a Content ID claim for it. I did not have time to go deal with it so I just deleted the video and re-edited without the song since it had no views at the time.
I use Epidemic Sound as my current primary source of bg music. Sometimes I'll use free royalty-free music (lol) from certain youtube channels. I also follow this artist who lets me use his music so sometimes I put his stuff in.