Help me figure out which scale sounds best

Few weeks ago i posted a challenge response to jak in writing a song. I have an idea of how to expand to the bridge and ending chorus but the issue im having is finding which scales work best. The first chord is a c (d standard) next two are the tricky. If i use the notes on their own.. i use
| 2 3 2 6p5 (or 4)
| 3 3 3 3 3 3 5
|2 2 2 2 4
|
|
|
Theres a good mix in there. Any tips?

D standard. So itd be 2 frets up for standard tuning. Ideally there is no shredding in this song. Its just a slow progression to the end.