geom_area()
geom_bar()
geom_line()
geom_point()
geom_polygon()
geom_histogram()
geom_rect()
geom_tile()
geom_raster()
geom_text()
sf
tbl_graph
&
geom_sf()
stat_...()
plot()
ggplot
Look at ?theme() funtion in your help pane of RStudio for more info.
?theme()