Alexa.com top sites alternative?

With alexa.com announcing end of life a couple months ago, does anyone know of replacements/alternatives?

One of my org's IPS layers involves allow listing Alexa top 50,000 (as in preventing those domains from being added to the block list, not explicitly allowing traffic from them). We're looking for a replacement solution that we can pull the top 50,000 or so sites from an API. Anyone have suggestions?

alexa cybersecurity