Citadela Directory plugin allows you to present also default WordPress Blog Posts on the map. For each blog Post you can define address and assign it to Categories and Locations, similar like Directory Item Posts.
Additional Post options
In Post Options metabox you can set up address and exact position of marker on the map.
From sidebar on Post edit screen you can select Categories and Locations for Post. Thanks to that you can search through posts from specified Category and Location using Posts Search Form block or show blog Posts on the map using Directory Map (for posts) block.