We generally put this kind of thing into a chat window and have people 'thumbs up' the ones they want to vote for. It's not elegant, but it's quick and gets the job done.
"workplace" sounds like a work environment. In this case, the first tool to consider is something your organisation already use/approved.
Most of the organisation have rules saying what to use for such generic "office" tasks. And this is not just for fun, the organisation must be sure that tool meets local regulations like GDPR, cannot leak corporate data (from emails to shared opinions or topics you internally learn).
If it's free and open source and it's also software, it can be discussed here. Subcommunity of Technology.
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