Hey again,
I found those two cacti in a shop:
Probably "Echinopsis" but which variety.
The first looks like an "Echinopsis Lageniformis"
I am not sure about the second.
I have done some more research and it looks more like Gymnocalycium type.
Maybe a variety of Gymnocalycium Oenanthemum.
However, I cannot find a picture of one that looks exactly the same.
Thank you for your help anyway!