Hallo, plane ich, Ferien anzustreben, die dieses September.Please den besten Platz vorschlagen, in dem ich 10 Tage besuchen kann.

Could you please ask your question in English please?
Looks like you (again?!) used the google translation.

Where do you want to go?
What kind of activities do you enjoy?
Where do you want to stay? (Hotels, camping...)

Does not make any sense to recommend a place in Bayern when you are planning to stay in Hamburg...