Best way to delete bad pages from e-commerce site without effecting seo?

Hello experts,

I have a SEO client whose ecommerce site was creating a page for every social media post they were creating. They are around 200+ pages. I de-indexed those pages. I checked in search console that Google bot is still crawling those pages.

What can be the best way to deal with such pages to avoid effect on crawl budget.

Thank you