sub-ohm query

Hi all hope all are well :-)

While the chief cheerleader and I are loving the penguins (3 penguins each now) and the way it allows us to almost go unnoticed here in QLD, we have decided by popular vote (I wasn't asked to vote tho :-( ) that something different and a little bit more flavoursome for when at home would be nice. What we are looking for is advice on a sub-ohm setup.

The characteristics it would be required to have are pretty simple....

Ease of use
My lady would like something that she can hold with one hand not two
Something that in her words... she can personalise a bit if possible
Something that won't kill us while we learn to understand on how to use the watt etc settings on them



I apologise if this is a big ask but taking the next step feels daunting looking at so many products, so we would rather have some guidance if possible.

Thanks all
DP