Kibitz https://www.flickr.com/photos/96181120@N03/
e.marie https://www.flickr.com/photos/emi_jane/
Vibing https://www.flickr.com/photos/skyev/
And to reiterate the other brands that others have already mentioned, Yummy, Cae, and Real Evil!
Have you demo'd The Sugar Garden's mesh heads? They have a more rounded, heart shaped look to them and they're absolutely adorable. Here's the slurl for the inworld location in case you are interested. http://maps.secondlife.com/secondlife/The%20Emporium/165/122/485