welcome!

join the community and join the vape meets in your area, can talk directly to these sifus.
in a nutshell:
1. types of common personal vaporizer (PV)/e-cig:
- Ego type (smallish discreet) also have VV/VW models
- VV/VW (variable voltage/watt) - adjustable to customize vapor/taste, can use different resistance coils then adjust to suit it. (provari, vamo, zigelei etc.)
- mechanical mods - no electronics/wires, straight up batt power. more advance cos have to recoil ur tank/atomizer urself to get the best resistance (usually mech mods users using low resistance 0.3 - 1.0 ohms and use genesis or drippers). (ds mod, k100, ss avengers, caravela, nzonic, poldiac, titan, mortar, chi u etc.2 to many to list)
- hybrids - one set body/batt & built in tank (assets - msian made, orion etc.)
2. different atomizers/tanks etc.
- clearomizers - vivi nova, ce5, smok r-tank, v-core etc., most have premade coils for sale.
- dct/udct or types that uses cartridges (eg. x8, smok dct)
- genesis type rebuildables - coil n wick urself, can use silica wick, stainless steel mesh or ceramic wick (eg. cobra, aga-t)
- drippers - no tanks to hold liquid, just coil n wick, drop directly onto it and vape..
Thanks for the info bro. I'm still deciding on whether to get a VV or a Mechanical one as I'm not sure for the pros and cons for both.