In creating a song you do want some contrast between verse and chorus. There are a few ways to do this.
- Raise the pitch of the melody as you introduce a new melody
- Vary the rhythm and meter of the lyrics
- Vary the chord progression.
Some songs will use the same progression throughout the entire song. The just vary other element like melody or rhythm.
As far as what chords to use. Basically you would use the same basic chords just in a different progression. For additional color you could include Dm or Em into the mix.