Are you a first time dog owner in Switzerland, that is, not had a dog registered in your own name in ANIS?
If so, have you done the SKN theory course?
Just realized that you asked this same question earlier, so I'll spare the community my usual long SKN and where-to-find-a-reputable-breeder post and instead link the earlier thread: Puppies
You were given the information on that thread that you will need to start the process - did you follow though with the SKN Theory regulations?
Assuming you have the SKN theory class sorted, a few links that might get you started:
You should first contact the Zuchtwart of the breed club governing the breeds you are considering. So making a decision on breed will help your research. I will repeat what I said on the earlier thread, though - please research breeds characteristics to find a good match with what you and your family can offer. 'Small dog' covers a very wide range of breeds, some of which might not fit at all with your lifestyle.
The SKG, the Swiss Kennel Club is here, with links to the various breed clubs. Breeders are regulated at the club level, with the SKG as a national oversight: http://www.skg.ch/cms/home.html
You probably want to look into the Zwerghund club, the group within the SKG governing several of the small breeds. http://www.zwerghundeclub.ch
In Germany the VDH is your starting point: http://www.vdh.de/home/
And other national kennel clubs can be found under the FCI umbrella: http://www.fci.be/en/
These are the national kennel clubs if you are after a pedigree puppy from a reputable breeder. Although due diligence into the breeder's ethics and program is still required. There is inconsistency between countries, and even between clubs within a country, in how FCI breeding is regulated.
If you are interested in a rescue dog, do take a look at the Swiss database of homeless animals. Contrary to common perception puppies come into rescue with some regularity, even small dogs: http://www.tierdatenbank.ch/cms/tier...unschtier.html
I took a quick peek and saw several adorable small dogs in need of homes....