Any tips on making a basic marinara with fresh tomatoes?

Good stuff so far, thank you all. I’ve not made that Hazan recipe and it sounds great, but more so if I was turning around and using it right then. I plan to freeze this stuff, so I worry the “freshness” might fade a bit rendering such a simple sauce such as her a little less desirable that one with a bit more flavor from garlic and basil. That said, I’m only guessing.