Is there a way to add a poll in my email?

@Vbeebs 

There are 2 options that I know off but bot of them are quite complex, hopefully you will be able to handle it..

1. First one is explained in this Klaviyo article so basically you will add buttons and each button will give people different properties, or it can be same property with different values but in this case only the last clicked will be available to the profile.
2. For the second option you will need a Typeform account and you will need to integrate Typeform account with klaviyo. Then you will need to create a poll or form in Typeform and add the code to klaviyo email. Both the integration and how to do this thing are explained in this Typeform article.