Best websites to help evaluate startup offers?

Evaluating startup offers against other offers from the same startup is tricky as the data set is small and the receiving engineers need to report them. So unless you can hack into a data source used by the company, that seems rough.

When it comes to comparing against the broader market, I just compare the offer against FAANG bands:

• Base salary - This one's easy, tit-for-tat.
• Equity - This one is much harder. You need to get the strike price + FMV and then do math to figure out the value of the options on paper. You also have to consider factors like vesting schedule and how quickly the options expire if you were to leave the company.

When it comes to evaluating the overall strength of a startup, I recommend this: "How to evaluate a startup?"

We gave a big talk on understanding comp overall as well: [Masterclass] Understanding And Optimizing Your Pay In Tech

I found this article pretty helpful when it come to evaluating startup offers
https://www.vinayiyengar.com/job-guide/