I can help with guidance and how to begin with your doll collection. It is best to start with determining the age as the value will depend on whether these are from the late 1800's, early 1900's or late 1900's. Antique bisque porcelain head dolls are usually marked on the back of the head in the neck area and under the bottom of the wig/hair. Newer dolls tend to have tags on the inside back of clothing, or under the clothing or under the back. Do you have photos of any of them?
Please take a moment to leave a rating by clicking the stars. If you require further assistance, no worries, the question thread does not close even after leaving a rating.