Informational Services Platform Development

I need a web platform that presents well-structured, regularly updated information while also letting visitors purchase professional services directly from the site. The core of the project is a clean, responsive website where articles, news items, or resource pages can be published through an easy-to-manage CMS. Alongside that content layer, I want a seamless services section: visitors read the information, understand our expertise, and then book or pay for the related service without leaving the site.

Key points I have in mind:
• Informational focus first—news, guides, and insights should be front and center.
• A services checkout or booking flow must be integrated (Stripe, PayPal, or similar is fine—open to your suggestion).
• Mobile-friendly design and straightforward navigation are non-negotiable.

Please outline the tech stack you prefer, show me examples of similar informational sites with service sales you’ve built, and let me know how you’ll keep the CMS simple for non-technical editors.