Hi! Thanks for your interested. Your project looks cool!
Feel free to host any of my freeware homebrews games on your project! A link back to their original itch.io page on the readme file would be appreciated if possible. Regarding license, all my games hosted on itch.io are freeware but still copyrighted, unless otherwise noted.
Good luck with your project, and thanks for helping people getting aware of retro homebrews releases!