It's possible that you want to see more clouds, try e-liquids with more VG into it.
This really seems like the more rational thing to try at this stage. It's a little crazy to see so many people immediately jump to the most dangerous, time consuming, and and costly option with so little info.
I'd spend some time learning how to set voltage and wattage. Try different liquids, and different PG:VG ratios. Try lower resistance coils for your tank. Get an air control valve. Try different tanks. Learn how to draw properly. Make sure that you're not flooding, or encountering other problems that could affect things. In short: learn all of the basics that you should know before jumping straight into the deep end.
The biggest thing that I'd recommend, though, is to take your rig to a store with knowledgeable staff (that won't try to hard sell you on any and every expensive item they have) and talk to them. It could be that there's something wrong, and you're not getting as much as you should. It's also entirely possible that what will satisfy you more is more/different flavor, throat hit, etc., rather than the pure volume of vapor.
Using a Protank 3 with air control valve and variable voltage mod, I'm able to get a pretty satisfying amount of vapor that doesn't feel particularly different from a drag of a cigarette. You might watch some video reviews of your tank to see how much they're getting, and if you're not getting similar levels then it's time to troubleshoot, rather than just shelling out buckets of money (and time) on an advanced setup.