The majority. This is a good place to start to get the general idea of where economists stand on a variety of US policy proposals: https://www.kentclarkcenter.org/
There are other places as well, but this is the most accessible one I know of for people without access to economics publications.
Polling data of economists is not enough for you? The polls even have commentary where many of the economists precisely explain why they answered the surveys as they did.
I formed my understanding of economists' opinions on policy by reading data like this. It's highly educational, very easy to read, and not biased and cherry-picked like articles and opinion pieces are.
If pure data in a highly accessible format not good enough for you, it sounds like nothing would be.
There are other places as well, but this is the most accessible one I know of for people without access to economics publications.