Evergreen tall plant for privacy

[TheGirlWithGlassFeet]

I've planted sunflowers at the bottom of the garden this year which have done really well. They are about 8-9 foot at the moment. The garden is on a slope onto a road so they have given some much needed privacy. I'm now looking at getting an evergreen alternative for when they die off.
I really like the look of the large leaves so was hoping to find something like this but that's the same kind of height.
They will be south facing and sheltered and will need to go in pots.
Does anyone have any recommendations please?

I'm a fan of privet. OK, if it gets really cold, it can lose its leaves, but it's green, printable, and a quick grower.

chainlink fence and a climber?
there are winter hard yasmin that might do the job.

Camellias or rhododendrons? Not sure what you mean by big leaves, but these could go in pots, are evergreen and will grow to about that height.

Photinia sounds like it would fit the bill. I have some in large pots, and they do very well.