SaleHoo does actively seek suppliers, as well as approaches suppliers, suggested to us by our members who would like to see them part of our directory. It's important to note, however, suppliers aren't just automatically accepted into our directory.
All suppliers need to pass our safety verification process before being accepted as approved suppliers for our community to deal with, no matter if they approach us to join or we invite them to make application.
In speaking to Shane earlier in the week, I know we already have someone doing a search for possible suppliers of diapers that we can invite to apply for approval. So fingers crossed, we may well have some luck and be able to find some viable sources for you sometime soon.
Meanwhile, this idea might be a little left field for you. However, maybe drop a post looking for others interested in selling the same thing with a view to perhaps putting together a small buying group. That way you may all be able to share the cost of a MOQ from a wholesaler and work out a sales strategy that benefits everyone in the group.
Never know :)