You can litterally do anything lol. Im sure thats not what you want to hear, but you can top, lst, supercrop, or use her for clones.
Id PERSONALLY repot her to give her roots some space. To do so, id remove ALL lower growth (theres a node (leafset) dead center.. id remove everything below it), and bury the plant so the dirt level is just below that middle node.
Now you have a shorter plant, in a bigger pot where she can expand her established roots, and start pushing new roots out of the buried stem section. It will create a strong root system and a hearty main stem to support later growth.
And you can immediately begin doing LST or throw a net over her (SCROG) to keep her low/wide if thats your goal.