Kelly clarkson's Separation (a very inspirational song, lighter)
Miley cyrus's "Climbing" (also very inspirational, but some lyrics are fast-paced and not suitable for teaching)
Trouble is a friend of Lenka's (from the title of the song, it can be seen that it is inspirational and frequent, but the chorus part may be a bit strange or particularly interesting).
ABBA's "I have a dream" (slower than the above, the lyrics are simple, pleasant and inspirational, which should be quite suitable)
Sweetbox's "We Can Calculate" (this song is very pleasant and lively, with simple lyrics, which should be very suitable for chorus and will be very pleasant (personal opinion))
Do-re-mi, the lonely shepherd of the sound of music (classic song, not much explanation)