Hi Esteban, I'd recommend using the "LinkedIn Profile" waterfall, since having that datapoint can unlock others more easily.
Navigate to +Add Enrichment, search for "LinkedIn", and you should see "LinkedIn Profile" at the top of the listings, in the Waterfall section. That option will combine multiple providers that can use personal email to conduct the search.
As a back-up option, experimenting with Claygent "Find a person's LinkedIn URL" template may also be useful for you.