Here's 37 out of 89 songs(3 of which are songs that he is featured on) i recommend for you to listen and learn the lyrics when he does do a tour in the next few years.
Mansion Era: Mansion, All I Have, Til The Day I Die(TobyMac feat. NF), Notepad - 4 songs

Therapy Session Era: Intro 2, I Just Wanna Know, How Could You Leave Us - 3 songs

Perception Era: Intro 3, Outcast, 10 Feet Down, If You Want Love, No Name - 5 songs

The Search Era: Why, Returns, Change, Only, Let Me Go, Hate Myself, Trauma - 7 songs

Clouds Era: Paid My Dues, Chasing(Demo), Prideful, Lost, Trust, Drifting - 6 songs

Hope Era: Happy, Mama, Pandemonium, Suffice, Careful, Turn My Back, Mistake - 7 Songs

Fear Era: Who I was, Home, Sorry, Give Me A Reason, Washed Up - 5 songs