You get 1 TB free per month with BigQuery, so there is nothing stopping you having a play with it. What’s most likely catching you out is when you click “Free Trial” and you’re asked to set up a billing account and enter a credit card etc. However, you don’t need to do this.
You can use BigQuery (up to 1TB) without a credit card.
See here for more details on how do to this. This will work for you.
solved Is there a tool that let’s you try big query for free [closed]