You can follow our weekly posts "What people on Pinterest are searching for this week" by @PinterestJoan. Here is the latest Pinterest trends with the collected insights.
You can also find out which keywords are being frequently used on Pinterest now on the trends page here! The Pinterest trends page is a great way to understand what Pinterest users are searching for and can help you find the best keywords to use on your Pins.
I hope this helps. Give us a shout if you need anything!