sli.do

I like to use this tool as a Google slides add-on. It is useful as a check-in point, as it is not competitive like kahoot or quizziz; but has a lot of the same interactivity features. You can create multiple choice, multi-select, and open-response questions. You can also create word clouds. With a free account, you are limited to three questions / slides per presentation. So sometimes I create multiple slide shows and the students just have to enter a new website to answer additional questions.