There is a lot of weak word wordlist out there that may be of use. - https://rubineducation.com/writing-skills-words-weak/ - https://fortune.com/2016/10/04/professional-email-tips-mistakes/ - https://bloggingbistro.com/11-weak-words-that-dilute-your-blog-posts-impact/ - https://www.theladders.com/career-advice/8-words-that-make-you-look-weak-in-an-email - https://www.revsquared.ca/2018/12/06/weak-phrases-to-avoid/ - https://expresswriters.com/50-weak-words-and-phrases-to-cut-out-of-your-blogging/ - https://medium.com/swlh/these-weak-words-and-phrases-are-killing-your-writing-c997876cf5d2 - https://goinswriter.com/weak-words/ - https://www.monster.co.uk/career-advice/article/seven-words-that-make-you-sound-less-confident-in-emails - https://time.com/2889520/lack-of-confidence-words/
There is a lot of weak word wordlist out there that may be of use.