Corn Varieties for Three Sisters

I want to attempt the three sisters method this year. I was thinking of using Montana Lavender Clay. However, when I grow Montana lavender it’s usually 5ft tall and I’m afraid the beans will over grow it. I’m not sure if this variety gets taller than that. I’ll admit I didn’t fertilize it the best so they might have grown taller. Will Montana lavender work for the three sisters method? If not, I want try another heritage Native American variety.

Depends on where you live. Look around locally for seed sources.
Or, acquire several different varieties and mix them all together to create your own local variety.
Regarding beans overgrowing. I just let it happen. Plant the corn first and when it is well-sprouted then plant the beans. The corn gets a good head start and can pollinate before the beans get too big. Both do well if the corn is not planted too close together.