To build a site with payment, subscriptions, user login, and registration, start by choosing a full-stack back-end framework like Django, ASP.NET, Ruby on Rails, or Laravel. Alternatively, you can use a JavaScript stack like Next.js with Supabase for easier integration. For e-commerce capabilities, consider exploring Laravel options. Avoid overly complex starter kits; simpler templates like Vercel's can help you get started rapidly.