New user for Musescore looking to donate scores

After using Finale for 2 years I am fed up with it for reasons that would take 3 hours. One is the sound quality of the piano [ I mainly compose solo piano] that to me is terrible. So I am starting on musescore.

But my question is: is there anywhere on the net where I can donate music scores opensource? Because nobody wants my music. I've been rejected by academics and the free music archive. So I may as well give my scores for piano away. If I can't do that then I may as well walk away and take up bird watching.