I personally just write my own RSS in VS Code, then uplaod it to my DreamHost server with FileZilla. I realize to anyone that might not have experience doing something like that it seems tough at first but it's not too taxing to take a template and just replace the values with your own tracks. I made a sample template here for people to go on, it contains a comment that explains each individual tag:
https://github.com/de-mu/demu-feed-template/blob/master/feed-with-comments.xml
I'm very interested in playing with the new tool Blossom that hzrd149 (npub1ye5…knpr) is working on to potentially make the uploading/hosting process even easier and cheaper!