Why Is Solanus Casey a Good Intercessor?
May I know which saint is meant for protection, spreads joy, and is a good counselor/listener?
A great holy one for you would be the most recent American blessed, Bl. Solanus Casey, a Capuchin Franciscan friar of Detroit (of the same order as St. Padre Pio, and very similar in some ways). He was the doorkeeper of his monastery and gave out great advice and consolation to hundreds of thousands over the years. He was a miracle worker and great intercessor and spent countless hours listening to people's woes. His spirituality was centered on joyful gratitude for all God's plans in our lives.
So I would suggest you take Bl. Solanus, a fresh new blessed of the Church, beatified in December 2017, as your joy-giving protector and counselor. You can find more information about him here.