I’m currently exploring ways to integrate our website with Salesforce Marketing Cloud and was hoping to get some clarity from those who’ve done it before. Our goal is to sync website activity (like form submissions, newsletter signups, and behavioral tracking) directly with Marketing Cloud to trigger automated journeys and personalize customer experiences.
Some questions I have:

What are the recommended methods or tools for website-to-SFMC integration?
Have you used API, JavaScript SDK (Web Collect), or CloudPages for capturing leads?
Any tips for Data Extensions, Contact Builder, or Journey Builder sync?
What challenges should we watch out for during implementation?

Also, if you’ve used Salesforce integration marketing cloud services or worked with a third-party tool, I’d love to know which ones you found effective and secure.
Appreciate any insights from developers, marketers, or Salesforce partners who’ve done this successfully!

Thanks in advance.