I have the same passion as you and the first time i heard about clarity i asked the same question, because i wanted a way to impact other people's lives. I think clarity is good, and i think it can provide a lot of value to people, and you can actually build a business here because the market is good
Of course, there are a lot of consultants in that niche so you have to make yourself stand out. It definitely has a great market. Everyone wants to be more productive and manage their time better. If you can show people how to do that and simplify it for them there is plenty of money to be made. This is one of the better sites for building such a business. Linkedin Sales Navigator is also an awesome tool for this.
Having played both roles of public speaking and time management for many years, I can honestly say there is definitely a market for this. There are so many new entrepreneurs and business owners now and many of these folks say that time is their most valuable asset. If you can show tangible ways how an entrepreneur can save time and in the process become more productive/better at what they do, you will have a market to serve.
I think public speaking has more potential: https://brandongaille.com/14-fear-public-speaking-statistics/
According to this article, 3/4 people (75%) fear speaking in public. If you can coach people on how to get over this, you will most definitely fulfill your passion and chances are, you will find someone that has a fear of public speaking for your market fit.
I have helped people get over fear of public speaking as well. Let me know if you want to get on a call for some tips and pointers on ways to coach people to defeat their fear of public speaking.