In this tutorial, I'll demonstrate how to add a search box in Leaflet. The search box, also known as a geocoder, can easily be added to your leaflet webmap.
The link to the geocoder can be found here - https://github.com/perliedman/leaflet-control-geocoder
A great video on how to create a simple Leaflet webmap can be found here - https://youtu.be/xHmS4OpcEOc