Have at least one image of the person you are looking for and a clue about their name.
Enter this data into Eagle Eye and it tries to find Instagram, YouTube, Facebook, and Twitter Profiles of this person.
sudo eopkg it git python3 python3-devel libgtk-3-devel libboost-devel libffi-devel cmake python-wheel
sudo pip3 install --upgrade pip
sudo pip3 install pep517
sudo pip3 install termcolor
sudo pip3 install opencv-python
sudo pip3 install selenium
sudo pip3 install face_recognition
sudo pip3 install WeasyPrint
sudo pip3 install requests-html
git clone https://github.com/ThoughtfulDev/EagleEye
cd EagleEye
sudo pip3 install --upgrade beautifulsoup4 html5lib spry
wget https://github.com/mozilla/geckodriver/releases/download/v0.27.0/geckodriver-v0.27.0-linux64.tar.gz
tar -xzvf geckodriver-v0.27.0-linux64.tar.gz
rm geckodriver-v0.27.0-linux64.tar.gz
sudo mv geckodriver /usr/bin/