Oven setting for pizza
Use the one at five o'clock. It should be the normal baking mode for most recipes anyway. 

The way I read the markings is: 


12 o'clock, a zero: Turned off. 
1 o'clock, a lightbulb: Light on, but no heating. Alternatively, it could be a preheat function. 
3 o'clock, a dripping fan: looks like some kind of defrost setting, in which the fan is on, but the heat source is not indicated. 
4 o'clock, two horizontal bars: Heat from above and below. 
5 o'clock, two horizontal bars: Heat from above and below, with fan assist. 
7 o'clock, a horizontal bar on the bottom and a fan: Heat from below with fan assist. 
8 o'clock, three shark teeth: Looks like some top-only mode, probably a broiling/rotisserie mode. 


I don't have good ideas about the 10 and 11 o'clock modes, wavy lines without and with a fan - if Stephie is right in the comments and this is a combi oven, these are probably microwave modes. Else, it must be something producer specific. 

For most food, including pizza, the upper+lower heat with fan assist will give the best results.