hey all just need some advice what's the best mod or wattage device to use with dripping ?
Best? That is very subjective. A Variable wattage device with up to 50 watts should be fine unless you want to blow major clouds then a 100-200 watt variable wattage device would be fine. Of course many use mech mods for this but you need to understand battery safety, ohms law, etc to safely use those at higher wattages.
I also agree with Robert's comments.
You'll have a
choice between tube and box mods which are regulated (electronic processor with buck & boost circuitry to allow variable voltage/wattage). Preference in form factor is purely subjective and personal. Decide how much power you will need based upon how low of an atomizer resistance you will be using. The lower you build the more power you'll need, generally speaking.
box mod, this one uses internal non-removeable batteries
tube mod, this one uses external batteries
You'll also have a choice in what
type of battery is used in the mod.
Internal batteries use an included USB charger and are not removable, don't require a separate box charger like external batteries use. However, once these internal batteries die (1 - 2 years), the entire mod will become worthless.
External batteries are removeable and require a separate box charger, also last 1 - 2 years, and are inexpensive to replace ($6 - $10 each), and you won't need to throw the old mod away when the batteries die.
External batteries (IMR) are safe chemistry, while the internal batteries (LiPo) are not and depend upon the mod's protection circuitry.