[khuknows]

There could be categories of things people want without many solutions in some marketplaces. For example, in the Hubspot marketplace, there are many WhatsApp widgets in their marketplace. Someone made one for the Pipedrive marketplace and it’s doing very well. There would be similar missing apps for Pipedrive, or there would be other platforms where a WhatsApp widget could do well.

[kbos87]

This! It isn't hard to look at what is successful in, say, the Salesforce App Exchange and apply that concept for HubSpot. Huge opportunity there.