It really depends if you're looking at macro trends or for some more granular insights and also if you're just looking at free tools or looking to spend some money as well.

As mentioned before EuroMonitor does have some great macro analysis across a variety of industries, we use it fairly extensively for macro travel insights across destinations.

If you have an idea of some of the trends you're interested in and are looking to take a deeper dive into, that's where I look into areas like Google News, Twitter sentiment analysis and even more specific at Google Keyword Planner and Suggestion Tools to see what people are actually searching around different topics.

Hopefully that helps out a little with a few options, happy to help out if you have some more specifics.

Cheers,
Mike