If you want to use an AI music editor to make your own backing tracks, Tracksy is a good choice. You can create music from text prompts, genre prompts or mood prompts, with a range of track styles and lengths. You can download tracks in HQ WAV and MP3 formats, and you can edit your tracks easily. Tracksy offers a range of pricing options, including a free tier, so you can pick the plan that suits your needs and budget.
Last, you could try Soundful, which offers similar features to its competitor. It can generate royalty-free tracks for videos, streams, podcasts and live events, and it offers templates for EDM and mood-based music. Soundful offers a range of pricing tiers, including a free standard plan, and premium options and bundles for more advanced use.