What font is good for signboard design?

If it is a standard character, it is recommended to use official script, regular script, or regular script. Use less cursive writing that others might not recognize after a long time of guessing. Use deformed words as little as possible. The strokes on the Wei stele are like cutting with a knife and an axe, so it is recommended not to use them. From the perspective of harmony and wealth, it is still official script. If you use regular script or Xingkai script, find someone with thick writing strokes. It means business is booming. Rich capital! You can also collect characters from the Internet.