"Highbush" blueberry is "lowland" blueberry? How confusing! But that makes sense since I seem to remember the highbush need more water than the lowbush which are more drought tolerant....
I think almost ANY blueberry is attractive in a landscape. Absolutely lovely fall color, dainty blossoms, berries turning from frosty green to magenta to indigo blue.... Only ... That's the not so pretty stage while they are covered in bird netting to protect from catbirds, robins, and mockingbirds, et al.
I have the shrub type amelanchier tomc mentioned and it IS a lovely shrub too.
What is a shrub that would be native to your area? Maybe some kind of viburnum?