A better option might be to use
https://www.allourideas.org/ and make 9 separate “surveys” for each position (gk, dr, dl, dc, mr, ml, dm, am, st) with an absolute TON of choices for each - maybe get everyone to contribute to the big long lists? Then send out the links and just let people vote in each as many time as they wish, until a number one for each (well, two for the centrebacks and strikers).
How that site works is it gives everyone a choice of two, eg Shearer OR Cantona and the person votes for which they think is better.
I made one for the premier league prediction thing but didn’t end up using it (yet) but you can see how it works here:
https://www.allourideas.org/tippl