Epidemic Soundis subscription based with varying priced models. “All videos, podcast episodes and/or any other types of content that have been published during an active subscription will stay cleared from receiving copyright claims forever!” *
This is a royalty free site, which is actually free as well. However make sure you choose Pixabay music because there maybe some that are offered by iStock that are paid to help support the free Pixabay. You may want those, but just be aware.
*I am an affiliate and may earn a small commission if you use my links. There is no additional cost to you. Thanks ~ L.A.