WordPress Webpage Development Needed

I’m planning a brand-new webpage and would like it built on WordPress. At this stage I don’t want to lock us into rigid requirements; instead, I’m looking for your guidance on the smartest way to shape the site so it’s clean, fast, and easy for me to update later on... (Budget: ₹12500 - ₹37500 INR, Jobs: Content Management System (CMS), HTML, PHP, SEO, Web Development, Website Design, Website Optimization, WordPress)