Day A Psalm 65 (praise and thanksgiving) and 27 (trust and confidence)
Day B Psalm 20-21 (prayer for help, and a praise for God’s answer) and Psalm 22 (a messianic psalm)
Day C Psalm 37 (wisdom psalm)
Day D Psalm 12 and 55 (laments)
Day E Psalm 38 (penitential) and Psalm 35 (imprecatory)
You can see most of these genres and their definitions in this post about Psalm 40.
Photo credit: Amy Mayfield