Bastian rhymes with:
bostian, bostian, chechen, cochin, cutchin, derchin, duchin, kitchin, machin, minchin, patchin, paustian, pechin, qichen, truncheon, turchin, turchyn, watchin'
Bastian sounds like:
bagdon, baisden, basden, basten, bastien, bastin, bastion, baston, bastone, beaston, becton, begotten, bigtime, biosystem, bogdan, bogden, bogdon, bostian, boston, bostonian, boughten, boughton, boustany, buckstein, bustin, buxton