I tried the North American thing of the three sisters - corn, climbing beans and squash. Didn't work for me
The beans tried to climb the corn but just ended up strangling the emerging cobs, and I couldn't get to anything because there were giant squash leaves everywhere. I tried dwarf beans which did better but were overwhelmed by the squash before they could produce beans.
I had to put in canes to support the climbing beans and the corn. The squash did quite like it. Now I give everything it's own space.
This was all in the polytunnel as none of those crops would grow outdoors where we live
Inside the tunnel I always have to hand pollinate squashes and courgettes even though there are often plenty of bees and insects.