I'm growing lilies with hostas
I think lilies (Oriental, Trumpet, Asiatic, etc.) are excellent companion plants with hostas, if adequate sunlight is provided. Here is a pic of one of our absolute favorites- Gizmo. This flower is outstanding ...humungous in size (12 inches across!) and very beautiful. Gizmo grows 36 to 48 inches in height, stretching just a little above the largest hostas. Do you grow lilies among your hostas?
Gizmo is only available from B & D Lilies in Port Townsend, Washington. Here is a link which may be helpful: B & D Lilies