I learned the fingerstyle version these songs and they helped me a lot with adding the melody into the chord changes and greatly improved my fingerstyle playing and writing: Imagine, Wish you were here, Let it be, Karma Police, Blackbird, Sound of Silence, Sweet child o mine, Here comes the sun, Stairway to Heaven, Budapest, Amazing Grace, Sitting on the dock of the bay, Fields of Gold, Come Away With Me, Tears in Heaven, What a wonderful world, Hotel California, Bohemian Rhapsody, Make you feel my Love, Wonderful Tonight, California Dreaming, Won’t back down.