My understanding was that MBTI is the most valid of these type of tests, if not MBTI then what should organisations be using? Include links if you have them? A

My understanding was that MBTI is the most valid of these type of tests, if not MBTI then what should organisations be using? Include links if you have them? Also I can't see a test which includes a negative factor such that there is a 'wrong way' to complete it and hence risk potential workplace repercussions as a valid replacement. Further I'm sure each big consulting firm has a version which is no more valid than MBTI.