Tropicanna
Tropicanna Gold
Minerva aka Christ's Light aka (in the database) Trinacria Variegata
Yellow King Humbert has broad strips of purple in the green leaves. Red and yellow flowers. Mine doesn't have that much purple though.
I buy once a year from Karchesky Canna, not only variegated but dark foliage, purple foliage and some beautiful flower colors. Alice Harris is the owner, she's a tad late on answering email and sending the plants. I think she is a one woman operation. She sends the biggest rhizomes I have ever seen on a canna. Buy 5, get the sixth free.