Well.. let's discuss something...
Since CFTS is peaking soon due to summer ending and in case Confident is not released as the official second single, how do you want the new single to sound?
I'd love a midtempo song with some soulful vocals so she could kill it live and this would show a different side of Confident which could be really good for the album.
CFTS was a banger and perfect for the summer, something more slow for the fall would be perfect imo.