Personally I’d steer clear of the cheap polyester ones on Amazon. I’ve had some luck with the more expensive microfibre ones but the cost does start adding up.
I’d second the point about upholstery fabric. I’ve made one from upholstery velvet which I’m happy with, it hangs well and I got the fabric pretty cheap but once up, the pile does need brushing in a consistent direction to make it catch the light consistently.
We (uk scout group) use g suite or whatever they call it these days. The Google connection isn’t ideal, but we get it completely free, the t&cs and level of control over it are a lot better than consumer gmail/drive, the learning curve for techphobic users is about as shallow as possible, and we don’t have to spend volunteer time on maintaining the platform. So definitely worth it for us but your situation may vary.