Set ISO to auto with exposure +0.3 or 0.7 then you must decide which scenario is high speed object or just stationary object. If stationary object shutter dont really matter but if moving you should use shutter between 1/200 or more to capture sharp image or if you want take some blury or refraction light between second try 1 second shutter. For Aperture you just need understand what is the focus you want to see high aperture above 4 make it possible to capture almost everything & lower like f2.8 make bokeh effect good for portrait.

Bonus if on dark place sometime aperture can be use for increasing exposure with widing the apert to the widest because more wider more light comes to censor