Start with high-confidence lesbian erotica books, then narrow by subgenre or adjacent topics.
Best Lesbian Romance 2011
Radclyffe, Cheyenne Blue
Girl Fever
Sacchi Green
Love Burns Bright
Radclyffe, Rebekah Weatherspoon
Best Lesbian Erotica of the Year, Volume 1
D.L. King, Violet Dixon
Best Lesbian Erotica of the Year, Volume 3