Which laser for the job

[Targetedindividual]

I want a laser that will be the most visible at night if I flash it to the clouds. Sort of like below picture. So others can see it in the sky from as far away as possible and that these people may say “oh wow Deirdre dearest what is that thing in the sky“ ?

What sort of strengths and colours would be best and easily available to buy. Also what other types of lasers can you actually buy online can you buy anything other than light such as infrasound, microwave, milliwave, infrared etc and what are they know as commercially speaking so I can source and find them to actually buy, thank you so very much kind peoples of the Earth.