Do you want it to show on a map or just want the GPS coordinate? And what format do you want the GPS coordinate in (degree/min/second, decimal degrees, or something else - there are many location formats to choose between)?
Most GPS test apps (GPS Status, GPS Test) can provide your current coordinate in a number of formats. If you want it on a map, OSMAnd can provide the coordinate in a number of formats: just tap the location and select "details" (it will show decimal degrees by default, but you can expand to show other coordinates). Maps.ME does similar but only offers decimal degrees that I can see. Google's Maps is typically Google, few options and more-and-more oriented towards selling you stuff, so only offers "plus codes" (numerical shortcuts plus city name), which are a Google invention, rather than a more generally-used coordinate.