Searching across boards + workspaces

Hiya! My company is wondering about searching items across boards + workspaces. We think this feature could be greatly improved because as it stands, it seems that it’s difficult to search across workspaces. We currently use Tags to help us cross reference boards + topics, but they aren’t as user friends as we’d like.
We’d like to know if you have plans to upgrade your search feature. If not, are there are third party apps you recommend to help us search for topics?