heres my suggestion,  ill add some later.

bitblend.io / bitblend.com
bitshaker.io
/ bitshaker.com
coinblender.io /coinblender.com
coinmixer.io
/ coinmixer.com
cheapmixer.io
/ cheapmixer.com
bitwisp.io
bitmix.com / bitmix.io
cryptomix.com / cryptomix.io
blend45.com