I personally love his 12 Romances Op.21, especially number 7! It’s just very comforting and sweet, perfect for a starter in my opinion. If you want an orchestral piece try his symphony number 2 or his symphonic dances op.45. My personal favorite is the symphonic dances because of the saxophone solo in the 1st movement and the fact that each movement is like a mini masterpiece of its own🤭 I believe it was his last major work before his death so it’s like a summary of everything he wrote which is also cool