Plant looks very healthy. Love this strain but haven't grown it personally. I have grown the same genetics so I can point you in the right direction.
I would not suggest topping these strains because it severely stunts them and the bounce back is long.
FIMing is the best option as they will produce heavy side branching after while keeping that main cola. In another week or 2, the side branches will either be as big as the main cola or very close in size for a very good canopy
I would suggest removing the leaves where u circled in the pic and maybe the two newest leaves as well.
I guarantee in 24-48hts you will see noticable growth.
Check out some of my diaries to see some examples of u can.
Good grow and great strain
#HappyGrowing
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