Q.Plants Preventing Soil Erosion.
Small riverbank.Plants growth no higher than 6-8 inches, hardy for sunny garden.Water gets high at times so must be resilient.
Certified GKH Gardening Expert
These articles should help:
https://www.gardeningknowhow.com/plant-problems/environmental/plants-for-erosion-control.htm
https://www.gardeningknowhow.com/garden-how-to/design/lideas/how-to-stop-yard-erosion.htm
https://www.gardeningknowhow.com/plant-problems/environmental/erosion-and-native-plants.htm
https://www.gardeningknowhow.com/edible/grains/cover-crops/living-mulch-ground-cover.htm
https://www.gardeningknowhow.com/ornamental/groundcover/gcgen/full-sun-groundcover-plants.htm