Question about finding hot leads:

If you have a large number of leads, how do you find the hottest leads to reach out to?

For context, we're exploring this area with Outfunnel and doing some initial research at the moment.

I'm syncing Klenty with Pipedrive. Is it possible to search for Klenty tags within Pipedrive? 

Is there a way still to map 'non text fields' in Klenty? We are using that to map titles and salutation. It seems the function has recently been disabled.