Hi badfish!
"A little more kick" is all in wattage. You can get more wattage by either increasing voltage or decreasing ohms or both. There is a point to where too much wattage will start destroying flavor and atomizer/cartomizers but my range for my flavors is around 6.5W to 8.5W.
Currently, depending on the ohm ratings in your cartos you're probably
vaping from 5-6 Watts.
A 3.7 volt battery and the lowest ohm atty/carto available - 1.5Ω will get you to 9.12 Watts. And there are atty/cartos that range up to 3.0Ω that would be good for the 3.7 volt batt - @4.5Watts. Any atty/carto with ohms higher than that - some go to 5.2 ohms - isn't a good fit for the 3.7 volt battery.
For a 5 volt mod, you want to stay around 2.8ohms (9 watts) to 4 ohms (6.25 watts).
For a 6 volt mod - @3.7 ohms (9.7 Watts) to 5.2 ohms (6.9 Watts).
[this using the Volts/ohms x Volts formula]
So for more kick you want something more than the @6 Watts that you're getting now.
Since it is for 'at home' -
battery life and
times between refills isn't as important as one you'd use while you're out. So a mod or PV that has a battery that lasts 12 hours wouldn't be necessary, nor would a bottom feeder with a 3ml bottle or a 5ml tank be necessary
My biggest hitting PV right now is a cisco 306 lr atty on an Riva SE battery and I use it for dripping with a drip tip. This produces the most vapor. It's a 1.5ohm atty on true 3.7v batt. producing 9.12 watts. And not all my flavors can take that much but Backwoods Brew 'applewood' does well on it. The thing with producing that much 'kick' is that the heat produced is not good for any cloth or filler material in a cartomizer. The burning that would occur would not taste good.
I've had many other mods - bartleby, protege, chameleon, wetbox, big brother, a few 5 volt mods and PTs that produce 5 volts. All of them except the Big Brother* and wetbox have given way to the eGo/Tornado/Riva). And currently I'm using the newer eGo-t tanks. The Riva - true 3.7 volt underload with an LR atty 1.7-1.8Ω tank atty will get @ 7.5-8 Watts. Even the regular ohm attys get @ 6.5 Watts. The batteries last long enough to where constantly charging isn't a problem and the tanks hold @ 1.5ml (A type) and 2.5ml (B type). No filler to burn.
And with the eGo style you can still use any 510 connection - cartos, the mega eGo attys and carts, mega eGo cartos, joye 510 cartos, the popular boge 2.0Ω carto, the lr atts for dripping and with an adapter, any other batt connection - KR8 cartos, 901, 801, etc.
*Big Brother - this is a variable voltage box mod - there are many variables out there - Buzz, Provari, etc. and these also would be good 'home' mods. Rather than varying the
ohms of the attys or cartos, you're able to vary the
voltage to get the wattage depending on the ohms of the atty/carto you have. You can run these anywhere from 3.0V to 6+V.
Sorry for all the math but when you want more kick you're talking in terms of wattage which requires it to fully grasp it.