WordNet sense 1 ((of characters in literature or drama) evoking empathic or sympathetic feelings):

appealing, likable, likeable

WordNet sense 2 (showing or motivated by sympathy and understanding and generosity):

benevolent, charitable, kindly, openhearted, good-hearted, large-hearted

WordNet sense 3 (having or showing a tender and considerate and helpful nature; used especially of persons and their behavior):

kind

WordNet sense 4 (musically pleasing):

harmonious

WordNet sense 5 (relating to vibrations that occur as a result of vibrations in a nearby body):

harmonic

WordNet sense 6 (having similar disposition and tastes):

compatible

WordNet sense 7 (suitable to your needs or similar to your nature):

congenial