In the following article, we will be discussing the top 10 popular and best string instruments. A string instrument is a musical instrument that makes sound by vibrating the strings on it. There are many types of stringed instruments. 1. Violin 2. Guitar 3. Cello 4. Viola 5. Ukulele 6. Mandolin 7. Harp 8. Sitar 9. Banjo 10. Piano