I'm looking for a thin notebook or ultrabook where you can connect 2 monitors for working which have independent images.
the notebook picture can reflect one of the monitors because of me.
can someone recommend something to me?
The simplest way will be to work with an external adapter, a notebook alone will rarely have multiple outputs, no matter how thin it is.
Either you take a thicker, which has multiple monitor ports, or you are looking for a notebook, which supports "daisy chain" on DisplayPort or USB-C. But then you also need monitors that support DisplayPort with daisy chain. This would allow you to connect several monitors in series, just like on a chain. Some notebooks also have enough power to display a desktop on the notebook screen as well.
I do not know if my recommendation is helpful to you. At work, we have now purchased HP EliteBook 840 G5. The notebook itself has a HDMI and a USB-C port, where you can connect a monitor. At the appropriate docking station are two Displayport connections. However, the parts are not quite cheap.
If the money does not bother you, you could Also buy the latest Macbook Pro. This has 4 USB-C ports where you can connect monitors
