How can I save data from the internal memory of my broken smartphone (Huawei P20 Lite)?

I have recently lost my smartphone (Huawei P20 Lite) and now has a complete damage. The display does not work anymore, the volume control does not work, it does not work anymore and generally does not work at all. Now to the question: How can I save the data from my smartphone from the internal storage space without having to fix my phone big?

I thank you in advance for your answers.

I just notice open and external power on the memory chip, as well as data with external cables tap.

Ehrm, not at all!