Ask HN: great B2B SaaS websites with product showcase?

Hey folks,

I'm trying to find examples of great websites that sell SaaS products to businesses / govt entities. What I'm looking for specifically is understanding the best practices of guiding an interested purchaser through the website, showcasing the product and ultimately offering a trial and/or to get in touch with the company to sign up for the service.

I'm implementing something of that sort for my product, and I think it's best that I at the very least see how other successful companies have done that so I don't reinvent the wheel.

Thank you!