Can you suggest a data collection service that handles complex websites?

Yes — for complex websites, I’d suggest looking at Bright Data, Oxylabs, or Zyte.

Best overall for complex sites

• Bright Data
  Good for JavaScript-heavy sites, anti-bot protection, and large-scale collection. They offer proxies, scraping APIs, and managed collection tools.

Strong enterprise option

• Oxylabs
  Very reliable for difficult targets, with good support for web scraping APIs and residential proxies.

Best if you want more managed extraction

• Zyte
  Especially useful if you want a service that handles rendering and extraction more end-to-end, rather than building everything yourself.

If you want a simpler setup

• Apify
  Great for automated workflows, browser-based scraping, and ready-made actors for many sites.

If you want, I can also recommend one based on your specific use case:

• small project vs enterprise
• HTML pages vs JavaScript apps
• budget
• need for APIs or downloadable data