Taking the advice of commenters I've been googling hair styles. I found a few I liked but all the models are very young, skinny and attractive so it's hard to imagine what the style would like on someone older, chubbier and less attractive.
Then I googled on hairstyles for older women and the choice is pretty much between Judi Dench, Helen Mirren and my granny.
Actually the two styles I like best of all are both men's.
Watch this space ...