help with sequential type of tests in statistics for hyppothesis testing

#1
my research topic is sequential type of tests in statistics for hyppothesis testing and i have been told to coollect atleast 20 sequential type of tests in statistics or more tests but during litrature survay i find only sequential probability ratio test. so it is requested that if any one has solution of my problem please send me a list of names of sequential type of tests in statistics for hyppothesis testing.