Beginner - First time using a backdrop - Looking for advice on how to set up lighting

[Gato Amarillo]

Thank you.

I'd say aboug 80-90 cm would be about right

So do you think this would be too large?It's a 120cm Octagon Softbox quite cheap.

There's not much info here. I'd pass just because they don't tell me enough,

Or this one?A Neewer Octagon 90cm.

That could work.

Finally, maybe a rectangular softbox like this one?Or is it too big?

Also that.

As for the remote trigger, is this the one I need?

That should work.

Thank you so much!