I've been looking for one too but I got tired and I ended up making my own.  A lot of companies use cheesecake as a flavor in their strawberry custard flavors and I hate the taste of it.  I changed up Friscoweather's Moo juice recipe for flavors and flavor strengths that I wanted and it's turned out great!  Sorry I can't help on store bought juice.  The only ones I've tried are Unicorn Milk, Mother's Milk and Strawnilla (which is the best to me!)