You wrote that you are from Germany. You may want to check the site
notebookcheck.com . They do the best laptops tests I know of: They do not just copy&paste the manufacturer and add some subjective judgement but go for a detailled standardized lab test routine. The tests are therefore long: It is for a quick impression sufficient to read the "Fazit" at the end.
They also have a section "Kaufberatung" in which they separate different types of laptops: You will not need a gaming laptop with strong graphic options for chess. The most versatile type of laptop are the multimedia notebooks, but if you want to go for a lower price point check their list about "Die besten günstigsten Office Notebooks".
IMHO the first criteria for selecting a laptop should be the display size: If you use it stand alone you may want to go for a bigger screen around 16inch. If you want to use an external monitor this does not matter much.
Additional criteria depend on your environment e.g. do you need a bright non-glare screen or are you using it in a darker surrounding. Further questions are if you want a touchscreen, a convertible, how important is a good keyboard etc.
Specifically for chess engines you may want to look for processing power, a good cooling system which leads to less noise. You will find data about that in their tests.
www.notebookcheck.com/Notebook-Kaufberatung.12901.0.html