> If you want a GmbH quickly there are specialized lawyers that maintain a pool of freshly founded GmbH's for you to buy.

That. It's possible to go even simpler if no limited liability is needed.

Just Gewerbeanmeldung costs maybe 30€ and takes less than a month normally. Large cities even have online forms for this.

Also the reporting duties are much simplified. ChatGPT and some accounting software are very helpful. Although a tax consultant and probably a liability insurance are recommended to avoid bad surprises.