Hello and welcome - I’d definitely start by having a look at the various map styles at osm.org itself. For example this one of Marina Square certainly isn’t too crowded - you could argue that not enough data is shown rather than too much.
That example uses OSMF’s experimental vector tiles, and uses the same base data is other maps based on OSM.
Other people can and have created map styles that show more detail than any of the maps on the osm.org site (you can see the cuisine on one of the restaurants there), yet as you zoom out only the most important data is shown where it would otherwise be crowded. That’s because the thing that shows the map to the user (MapLibre) is clever about what to show and when.