Build me a website to post my training and write blogs -- 2

I'm agile trainer and consultant.
I need a website to promote my training and consulting.

1. Look into the reference websites and recommend template to buy (Wordpress, wix, etc)
2. After deciding the template I will buy it. You need to install the template in my domain (skilldots.com)
3. After installing, update the content that I provide.

In this website, I should be able to
- Update my training regularly
- Payment through the website
- Write and post blogs in website
- Interested participants should be able to contact us (Contact us form and chat)
- Google analytics to analyse the traffic.
- SEO optimisations (Addons)
- Photos and videos in the website (youtube links and upload videos).

Reference website:
https://silicontechsolutions.com/index.html
https://www.advanceagility.com/
https://www.accelerateagility.org/
https://prettyagile.com/
https://www.epicagility.nl/
https://global-align.com/