Every month,  Billboard   Latin  and  Billboard Español  editors spotlight a group of rising artists whose music we love. Think “diamantes en bruto,” or “diamonds in the rough.” These are newcomers who have yet to impact the mainstream — but whose music excites us, and who we believe our readers should make a point to discover. Our latest edition of  On the Radar  Latin includes a wave of emerging artists, who we discovered by networking, coming across their music at a showcase, scrolling through social media, or elsewhere. See our recommendations this month below: Artist: Alejandro Preschel Country: Venezuela Why They Should Be on Your Radar: With a sweet, powerful voice perfect for country music, and his superstar looks, Venezuelan-American singer-songwriter Alejandro Preschel moved to Nashville a year ago in pursuit of his dream, and has been creating music in this genre in both English and Spanish ever since. Inspired by artists like Stevie...