create searchable map

I'm looking for somebody to create an interactive map for me that will be available on a searchable platform. The map must include a search bar so that users can easily find the businesses by place or postcode they are looking for. Specifically, I would like to use Google Maps as my platform of choice. This interactive map needs to be easy to navigate by users of all skill levels, and it needs to be able to withstand a large amount of traffic without having any issues. I am open to hearing any ideas and solutions that you can provide. Please let me know if you are able to help me with this project.

Something similar to https://www.caringhomes.org/