How best to Give Away/Sell My Collection

Hi, I'm a 22 yo man wanting to shrink his collection considerably, and I want to give my treasured games and consoles to some young children who will actually play them and have their imaginations enriched by their worlds. I'm transferring to a new college soon and only want to take my games with the most sentimental value and replayability. I have NES, SNES, GENESIS, PS, N64, GCN, Wii, and Wii U games, and an N64, a Wii, and a Wii U. I think my time is past for obsessing over childish things, it would warm my heart to know some little boy gets to play mario maker at a daycare because of me. How can I go about making this happen? Who do I talk to? Should I donate or sell?