Here are some basic recommendations based on what I've experienced and heard from veteran vapors.
If you want major cloud production, these are my recommendations for some great starter kits, tanks, and mods:
Smok Alien Starter Kit - The perfect combination of cloud production and flavor. The mod itself is the kicker for a myriad of different reasons, but regardless, this a great way to feel better about jumping into the "high performance" category.
Sigelei Kaos Spectrum (Mod Only) - "For most people, the Sigelei name is foreign and it is not a household name. In the vape industry, however, Sigelei's name is very well-known and when vapers hear Sigelei, they associate the name with durability, reliability, and style. Sigelei is recognized the world over for accomplishments in the realm of vaping". That is an excerpt from their website and quite frankly I couldn't say it better myself. This device has many "one-off" features that will require some good tenure of knowledge regarding how these devices work and just a fundamental understanding of how vaping has evolved and now works. In other words, not for beginners.
Sigelei Fuchai 213W TC (Mod Only) - Another gem from Sigelei! 213 watts of power and a lightweight straight forward design. Much more easy to use compared to the Kaos.
Smok TFV8 Tank- This tank is called the cloud beast for a reason. The coil options for it are excellent for whether or not you want to fog up a room or if you want "punch you in the mouth" flavor. The real kicker in my opinion is the RBA deck it comes with, which puts most RTA's to shame. This tank cannot be beat!
Aspire Cleito 120 Sub Ohm Tank - More awesomeness from the one and only Aspire! Flavor and clouds for days, need I say more?
Any combination of these mods and tanks will be perfect for making those silky smooth, satisfying clouds of tasty vapor! To touch base with the original idea, just remember it is subjective and we would love to help you make an informed decision based on your specific desires! Always feel free to reach out to firstname.lastname@example.org to have one of our customer service representatives go over why it could be a perfect fit for you specifically.