Humidifier space problem

With small grow spaces you should place it outside the grow space. Close to the air intake. I keep my dehumidifier and humidifier always outside the grow space. My room is not so big so it works fine.

I would worry more about your extraction andfresh air intake fans when she grows larger she will give off a lot of humidity and in small spaces if your air exchange isn't spot on like negative pressure your going to find it really hard to stop the buds from getting mold. which I would worry about more in my opinion.

Your plant is big enough that you should be able to ditch the humidifier. When you hit flower you will need to lower the RH.

In flowering you want a 40 rh. So you likely won't need it soon at all.

Do you live Inside a refrigerator or a desiccant packet? Unless you rh is hitting below 30 regularly I wouldn't bother especially during flower. Alot of humidifiers can easily attract a pipe or extension. Have humidifier outside tent but the tubing goes inside. This would require a rh probe to turn on/off Most humidifiers run on Internal sensor which is not great outside the tent. Good luck.

If it is needed place the humidifier or dehumidifier or any other atmospheric control outside the tent, so the air its pulling into the tent from the extractor fan is all ready in line with what you want. it makes the room outside of the tent act as a lung room. This is where you heater and other things should go if you need them and the best way to do it IMO. granted if you tent is a 10x10 then this might not be a great option.

Fix humidifier on a wall

No need of a humidifier at this stage, especially later at flower 👍