Need advice on 6" Clip on fans

I am trying to purchase a couple clip-on fans today or tomorrow for my 4x4x80 vivosun grow tent. I've had problems with Genesis 6" clip on fan from Amazon not staying tight to the side bars and falling down onto the floor.
I have been recommended to these hurricane fans. They are the stationary ones that clip on and tilt, but they do not oscillate. I have also heard that the new vivosun 6" oscillating clip on fans are great (but they are out of stock on Amazon and on their website).
Does anyone recommend the hurricane 6-in clip on fan for a grow tent? Getting two to have above your canopy in a 4x4 for proper air circulation.
I currently have an AC infinity t6 inline fan sucking air out of my tent with a vivo sun carbon filter. I just wanted good air circulation in and around the tent. do you recommend an oscillating fan or is a stationary clip-on fan sufficient?

The cheap ones crap out after 6 months to a year or so. Haven't used the hurricanes, I just keep extra fans around for when one bites the dust lol. If you're having trouble getting them to stay where you clamp them on, use duct tape around the clamp and pole.