Sometimes the best new R&B can be hard to find, but there are plenty of great rhythm-and-blues tunes to get into if you have the time to sift through the hundreds of newly released songs every week.

Hee Soo is a new artist on the rise. With music produced by singer-songwriter Jung Young Jin, his debut track “M.O.L. (My Only Love),” is an upbeat R&B song that showcases his great vocals. Hee Soo is ...