I found the following sentences in many English Writing books for exams like TOEFL:
First and foremost, ...
Second, ...
Third, ...
Last but not least, ...
However, my grammar software points out that there are clichés:
First and foremost -----> First / Primarily
Last but not least -----> Finally yet importantly
Since the books are written by those who are not native speakers, I am not sure if they are right. Could you please tell me which is better?