What type of songs should we practice

So my question is as singer who is developing, what type of songs should we choose to practice and sing?

Sincerely yours,

Aaron Zhu

Great question! Here's an article that may help you choose a good song, and another on song work. 

Ultimately, we sing some songs because we love them, others that challenge us (in the area of range, registration, sustains, vibrato, runs, style, etc), and some because we have to (for an audition or performance). When choosing a song for the purpose of skills growth, I encourage my students to choose a song that's "one step" above their current comfort level (rather than a huge leap). So if it feels slightly beyond your comfort level, that's a good pick, in my opinion!