I seem to better with whole food suppliments. Thinking of Brewers yeast, but is this than not good for those with any candida problems?
If you want good sources of choline I would still go with lecithin sources such as soy, egg yolks or sunflower seeds for food sources. Chickweed is a good herbal source and is beneficial for other things as well such as intestinal issues and adrenal support.
If you do want to use a yeast for a B vitamin supplement then brewer's yeast (Saccharomyces cerevisiae) is fine. S. cerevisiae is actually a prebiotic making it useful for fighting Candida overgrowth.
Other B vitamin rich herbs include nettle leaf and seaweeds.