// Givebox (Preferred tag)
nw["amenity"="give_box"];
nw["amenity"="givebox"];
// Reuse
nw["amenity"="reuse"]["reuse:books"!="only"];
// Give-away shop
nw["amenity"="freeshop"];
nw["shop"="charity"]["payment:none"="yes"];
nw["shop"]["charity"="yes"]["payment:none"="yes"];
nw["shop"="second_hand"]["payment:none"="yes"];
nw["shop"]["second_hand"="yes"]["payment:none"="yes"];
nw["shop"="charity"]["fee"="no"];
nw["shop"]["charity"="yes"]["fee"="no"];
nw["shop"="second_hand"]["fee"="no"];
nw["shop"]["second_hand"="yes"]["fee"="no"];
// Toy library free of charge
nw["amenity"="toy_library"]["fee"="no"];
overpass-turbo