You can top it after it has 6 nodes, keep it simple, nothing wrong with a topping, cut it back to the 3rd node once it has 6 and it will bush out nicely. Looks like the 5th or 6th node is starting. Depending on what you are trying to do, you can gently tie branches back to open the plant up, I wouldn’t recommend doing too much, like mentioned, focus on keeping it happy, these plants are pretty forgiving.