Since many of us are coming from EE, I will reference these EE addons as examples:
- channel polls
- vwm polls
I found this question but it didn't help much:
How to deal with client input your site?
Also there is UPVOTE plugin but it's not really polls.
https://www.doublesecretagency.com/plugins/upvote
It is important that it works like field type and that you can add as many options as you need.
Thank you