Visualiser for online tutoring

[xsquared]

Hello,
I've signed up with an online tutoring agency recently and one of the things they recommended I invest in is a visualiser.

I don't know a great deal about them, and there's so many to choose from on Amazon, but I'd like to know whether you particularly recommend the one you have, and what make is it please?

Usually I just choose the one that has the highest rating or has high number of reviews.

Thank you.

I have this one in my classroom and it's really good, has autofocus and a greatvpicture but I'm using it to project on a white board. Not sure if you need such an expensive one really.

https://amzn.eu/d/eiGpqhK

Thank you, Wanda

I was thinking of something more in the £40 - £50 range, but I shall bear that in mind.

To be honest, a lot of them look similar, so I'm wondering how much better a £100+ is compared to most of the ones I see come up when I do search on Amazon.

I just need one that projects a clear image of what I'm writing or drawing on paper to a screen for my tutee. Something that can adjust at different angles and straighten for the best view, that sort of thing.