If you are looking for maps themselves (a la Google Maps) I highly recommend checking out Protomaps [0]. It provides a single file (PMTile format) that contains all the map data and you can request ranges from the single file to get the required vector data you need for a given area/zoom.

So you can setup something like the following:

    S3 (host the myfile.pmtiles) <- Lambda (takes the x/y/z from the path and requests the correct range) <- Cloudfront cache tile response 

Then you can setup tiles.mydomain.com (or use the cloudfront domain directly) and then use Leaflet or similar on the frontend to fetch/render the tiles. For Leaflet you use the protomaps plugin/lib and give it a url like "https://tiles.yourdomain.com/20230408/{z}/{x}/{y}.mvt" where "20230408" maps to "20230408.pmtiles" in your S3 bucket. Now I can drop new pmtiles files into that bucket and update my clients to use the new source. And since the tiles are in vector format you can theme them however you want in the client which is neat. Lastly you don't have to use the 100+GB whole-earth tileset. You can use a tool [1] (provided by the same guy) to download a dataset for just a given geographical region.

The .pmtiles file is a little over 100GB but the whole setup took me only an hour or two max to get running and will cost way less than Google Maps to run.

[0] https://protomaps.com/

[1] https://app.protomaps.com/downloads/small_map