From innokin I've only used an itaste v3, lovely small device, works really well with the only downside I've found being the teeny 800mah battery. I've had no other issues with it
From kanger I have evod glass, pro tank mini 3 and an aerotank. They're all good, but the stand out product for me from those 3 is the pro tank 3 mini (especially if you add a v2 aero base to it). And it looks good on the itaste v3.
I was happy with those tanks as they were, but then I bought naturevape coils for them and improved them even more. I know another website does sell naturevape products besides themselves, I don't know if you could contact them.
IMHO, you could make an epic starter kit of itaste v3, mini protank 3 and naturevape coil.
Russ