Why not go for cherry or grape strain crosses??? Those terps are much easier to come but either way think I posted a few pages back but I've run dynasty genetics and have got blueberry terps phenos a few of dynasty strains...I'd go for the bluniverse, huckleberry kush, blue heron, blue magoo and there a few others.
Another company I'd look into is calco genetics, I don't know much about them but it's say he worked a older dj short blueberry cut he got from dj into his line which are all blueberry crosses, might be worth a shot. Calco's strains caught my eye because they sound so tasty with strains like wedding pie x blueberry syrup and cherry AK x blueberry syrup. The blueberry syrup is clone only dj blueberry x humble pie.