I don't know, as I have been into tulips lately - and not having much luck with them, though I am trying again anyway - however, I do suggest also posting this question in the Bulbs forum.

Having said that, ime freesia bulbs are not as fussy - I would think any of the major companies would work, such as White Flower, or Brent and Becky, or Scheepers.

Whereabouts do you live? There should be some good fall plant sales coming up at various botanical gardens.