I think one of the best ways to hold your food on a rotisserie is to purchase a few of the much better 4 prong meat forks. They are not too expensive and come in many sizes.
This chicken did fine with the larger meat forks.
Another method is to use a basket of some type and they come in many sizes as well.
This is two butterflied whole chickens in my spinner.
They come out nice with this method.
Some wings in the same spinner basket.
This setup is getting hard to find but works better than anything out there. It is the EZ-Que rotisserie unit and I have both the 6 and 8 inch baskets. The two whole chickens above are in the 6" basket. The 8" basket will hold a turkey.
This is two bottom round roasts in my 6" basket.
Setting up a ham in the basket.
A couple of Cornish hens in my EZ-Que 6 inch basket.
Don't give up on your rotisserie cooking as when it works, it's a real treat.