Every now and then I release some free music for use in games here.

https://www.hrtstudios.com/free-music-for-game-developers-filmmakers/

You can use it for commercial purposes, just add me in the credits and let me know about it. I'm working on some chiptune stuff right now and I'll add that pretty soon.

-Harry

PS The files are high quality WAVs (big size), but if you need just MP3 or OGG let me know through the contact form on my site and I'll send them to you.