What companies are currently advertising on X? Who are the biggest spenders?

Is there a site or service that provides data on which companies are spending the most to advertise on X? I've seen the reports from November about some companies like Disney who were formerly boycotting deciding to return to X after Trump and Musk rigged the election. There is also a Reuters article from 4 days ago stating that Amazon will be ramping up its spending on X (just one billionaire Nazi helping another keep his propaganda machine afloat, I guess). AI suggested others like the NFL, but I need to look and see when the source is dated.

Where can I find the data?