Have been getting great information on growing colocasia esculenta (different varieties) also the American equivalent Xanthosoma Sagittifolium on a Youtube channel called, Compostapr.
It is in Spanish but the guy is really very knowledgeable! The variety "Elena" has lilac flesh and is very edible 😋. That is available at Wellspring Gardens. Also the regular green leaf with the white flesh tuber.
Taro does not make separate corms like the Xanthosoma. One must remove all young suckers or the plant will not grow a sizeable one to eat.
There is a variety of colocasia that the tuber is called eddo in some of the English speaking Caribbean Islands. This one does produce runners with small (tennis ball size) tubers. Those can be found in many Asian or Puertorican produce markets as well. Hope this helps.