In my SB team I have Ardisia, Lavender, Edelweiss, Night Phlox and Strawberry Candle.

Ardisia, Lavender and Night Phlox give +40, +20 and +20 percent of SB damage. Ardisia also give +15% damage to the party. Edelweiss is here for her +50% speed due to Lavender low speed. Strawberry Candle add solar shrine. I use Night Phlox for her great attack and healing skill. But you can use Convallaria or Lavender instead for their 3 target skill.
Lavender is really cool here since she is the best SB event girl (and the best event girl) with +20% SB damage plus max skill/max slot due to her event girl statut. But her catastrophic speed can be annoying.
German Iris is also good too with her +25% SB damage. Maybe the best 5* for this king of team.

For Strawberry Candle, her ability help a lot the SB team but also the other teams if you have troubles with certain groups of pests.
But note that this ability is useless on certain maps like manyu or dragons maps (there is no free nodes here). Certain missions maps are also not good for that if there is free nodes where girls can't go (like decorative nodes or nodeson moving pest path). But if you plan to rely on SB or only use it for fun, Strawberry Candle is your girl. And her sprite is so cute <3