Need help please!

Hi there,
I’m creating a delivery app but don’t want to use G-maps,
I need it so users can type in their location and the API / Plugin will do a search through my users database to find the closest vendor locations,
I’ve found a Geolocation company I wanted to use - Geoapify,
but someone told me that I need to use a plugin if I want it to search through my database…
The only plugin I found was Mapbox, I got it, at the moment all I see is a map element (that has 2 inputs)
I’m not sure how to change it into only 1 input, and how can I set it up so it will be able to search through my users addresses?