The phrase "most thousand and one" is typically used to describe a large number of things or an extensive list. Some synonyms that can be used in its place include plethora, multitude, copious, profuse, and abundant. Other options could be countless, innumerable, myriad, and numerous. Depending on the context, alternatives such as vast, extensive, or comprehensive could also be fitting. Overall, there are many ways to convey the idea of an extensive list or a large quantity of something beyond the phrase "most thousand and one".