Ideas for unused items

I have a variety of items we no longer have a use or need for. Decorations, an outgrown bike or two, ya know, stuff that sits around but never gets used. I’m hesitant to donate because I feel like it could just get trashed or not go to someone who could benefit. I love the idea of a “free garage sale” but don’t have a way to host that. Looking for creative ideas on what we could do with these items.