New to vaping done quite a lot of research struggling find best battery , I’m looking for something I’m able to sub-ohm on and mouth to lung as well is this possible to do both with two different tanks?
I'm assuming you're not asking about "batteries" per se, but
battery devices?
You can use nearly any regulated (variable wattage) mod with either a MTL or DTL subohm tank, as long as the mod/batteries is capable of the wattage requirements of the sub-ohm coils. DTL sub-ohm tanks/coils tend to require higher wattages (over 40 watts or more) than do MTL tanks/coils (10 - 20 watts). Sub-ohm tanks/coils tend to consume more e-liquid and drain batteries faster as a consequence; they also require less nicotine and make larger volumes of vapor.
Tanks tend to do better at either MTL or DTL. There are not many tanks which can do both equally well. So your first order of business is to decide which style of tank best suits your expectations.
Concerning mods, after deciding how much power you'll need depending upon the type of tank, is whether to get one with an internal battery or one that uses external batteries. Both types have their pluses and minus's.
Good Starter Setups for a Beginner Vaper
Battery Basics for Mods: The Definative Battery Guide for Vaping
The previously recommended Geekvape Aegis Mini starter kit might be right up your alley. I have one. The mod is an internal battery 80 watt mod. The Cerberus tank included in the kit is a DTL subohm tank. However, you could probably close off the air control to almost closed off to get a MTL draw, and turn your wattage down to around 25 watts (recommended coil wattage is around 40 watts) for a decent low wattage MTL vape.
Should you decide to go all the way MTL, the Innokin Kroma and Zenith tank is very popular. The Zenith tank is strictly a MTL tank. You could also buy the Aegis Mini and Zenith tank separately. The choice is yours to make.