Wordpress template to modify and content creation to build a company website

Hello,

I'm setting up a small consulting company about Digital Transformation and Cryptocurrency advisory. I need help to create the online identity, starting with the website.
I have the logo and a wordpress template (this one:
https://themeforest.net/item/engitech-it-solutions-services-wordpress-theme/25892002).
The template is installed here: https://chainstart.io/home-5/

My needs:

As output I expect the classic company website, with all the structure and pages and some initial relevant content.
The installed template must be adapted to the company color schema (white, grey, black, gold) instead of the original colors (blue). I have all the original graphic elements (psd also) of the template.

The business offering (Digital Strategies) must be divided in two areas:
- Digital Transformation and Infrastructure modernisation
- Cryptocurrencies and Blockchain Advisory


on "Digital Transformation and Infrastructure modernisation" I would like to find some inital content taking other websites as examples, ie.:
https://www.and.digital/services/digital-transformation-consulting
https://www.xenonstack.com/solutions/
https://candoris.com/home/what-we-do/modernizing-infrastructure/
https://diaxion.com/