You can increase your impact using Collaboration metrics which show how authors are integrated into scientific networks based on their co-authorships.
SciVal produces collaboration metrics by assigning publications as either institutional, national, international, or single-authorship based on the author and affiliation data. Where a publication fits multiple categories (e.g. national and international) it is assigned to a single category to maintain the total sum of publications.
Researcher collaboration metrics may be used to evaluate interdisciplinary research scope at an institutional, national or international level.

Academic-corporate collaboration metrics may evidence productive engagements with community groups, industry or governments.

Using Web of Science you can find potential collaborators on your topic by first doing a topic search and filtering the search results by affiliation in Web of Science. You can then reach out via author profile IDs.

This example is from a topic search for malaria AND cholesterol.

Use Analyse Results to see the number of citations from each place of affiliation.

In SCOPUS you can use Research Discovery to find collaborators in your field.

You'll see matching researchers in a list.

You can sort your result list by the following author metrics;

• Author information

  Shows the name, organization, and country based on the last publication by the author available in Scopus.

• Number of matching documents

  Shows the number of documents that match the search and are published within the selected time range. If year was not selected, matching documents from the last 5 years are shown.

• Total citations

  Shows the number of citations for all documents to date.

• Total documents

  Shows the total number of documents that the author has published in their career available in Scopus.

• h-index

  The h-index is based on the highest number of papers included that have had at least the same number of citations.