Wo kann man gute Öl-Farben für Anfänger kaufen?

The paint base is normally a wedge frame with a stretched screen. It is usually already primed today (so that the color does not strike in the fabric). However, there are also (good for the beginning) oil paint blocks that contain coated paper.

There is oil paint in two price or Quality levels: favourable “studies” or academy quality or highest “artists” quality. Buy the three basic colors yellow, red, blue. From this you can mix a lot of tones and gain first experiences. Step by step you can buy other desired colors, because they are all available individually, e.g.:

https://www.gerstaecker.de/schmincke-norma-professional-feinste-kuenstler-oelfarben.html?gclid=CjwKCAiA5Y6eBhAbEiwA_2ZWIbWkDrhO2FRfFnfEAf-RC-OFQDbZ1auNP

It can be mixed very well because it remains very long moist (in contrast to acrylic).

You don’t need a lot of exercise at the beginning, because as the color remains moist for a long time, you can also correct it well.

Since oil paint does not connect to water, you need solvent for dilution and cleaning the brush.

Overall, it may be necessary to get used to the smell of the color (plant oil) and the solvent. In order to avoid typical beginners mistakes, I recommend a manual, e.g.:

https://www.medimops.de/parramon-jose-m-right-mal-mit-oelfarben-bagbuch-M0392443302X.html?variant=UsedAcceptable&creative=&sitelink=&gclid=CjwKCAiA5Y6eBhAbEiwA_2ZWIbi64x