i would stay away from any sand sifters like cucumbers or starfish cause of your DSB
but get as many different kind of snails your lfs
or whoever has, also get some dwarf hermits/ some prefer scarlet or red because blue be buck wild in your tank and duke it out all the time. you might want to wait till you tank settles before you add any shrimp and test everyday to make sure your params are in check. shrimp as well as other inverts are sensitive to high nitrates so the longer you let your tank settle the better.
since you just set up your tank i'd let it cycle and build up enough bacteria for a while, test everyday to make know where your at in your cycle. and then after you tank settles down and you decide to buy your first fish buy a small cleaning crew with it... or if you buy online wait till you see some signs of algea growth and then buy a cleanup crew and get a variety of snails and hermits, i also added one emerald mythrax and one red mythrax to my tank and they are thorough cleaners.