Does anybody know how to get Spotify tweaked

So lately I been using Amazon Music which I like. But many services used to connect or listen use more popular like Apple/Spotify Music. and I have a discount for my amazon music, and I don’t wanna buy a subscription for Spotify , so does anybody a way to? (I have tried App valley,tutabox,tweakbox and Etc , they don’t work or sometimes say “Not signed or Old Certificate “