If you're going to REFUSE to move-up to Ego sized devices, and if you simply REFUSE to CONSIDER using a MOD sized device. (I speak for the ECF community, when I suggest you skip the BS and move-up to a MOD-SIZED APV (advanced personal vaporizer) well then- I can only recommend so-much.
if you MUST use a cigarette look-alike, then I suggest you go with a KR808-d model. The KR808-d cig-alike has a FIXED-voltage of 4.2 volts. This basically means that your battery would-not drain over-time until it reached 3.2 volts (3.2v is dead - time to recharge), rather, it would stay (regulated) at 4.2 volts until dead, & time to recharge. NOW then- If you MUST go-with a cig-alike, the KR808-d is your best bet, because the cig-alikes that are NOT regulated to output a constant 4.2 volts, are simply NOT powerful enough, in my opinion, to satisfy someone looking for an experience close-to smoking an actual cigarette.
You have TWO clear options when it comes to a KR808-d type cig-alike. The Bloog Max-Fusion, and the AltSmoke VOLT. Of the two, my personal preference is the Altsmoke VOLT, and I personally own 2 of them. They will STAY at 4.2 volts, giving u a consistent vape until time to recharge. (rather than the vape becoming increasingly less nd less powerful as the battery discharges, like with MOST cig-alike kits) NOW THEN- I suggest you get at-least TWO Volt batteries (the KIT that COMES w/2 batts would-be best) In the kit, you get x2 batteries, a charger, cartomizers/clearomizers, and a bottle of juice. I highly recommend this option, although, I would also recommend you grab a 3rd spare VOLT battery for backup.
IF you are WILLING to move to the EGO sized batteries, you can find GOOD ego-style batteries on the ALTSMOKE website as-well. The EGO batts on the Altsmoke website are known as K-GO's elseware. (If they haven't changed, and if I'm not mistaken... I THINK Altsmoke eGo size batts have what I am about to speak-of) The altsmoke ego sized batts are ALSO regulated to stay at 4.2 volts (like the Kgo, sold else-ware) Now, the eGo battery is going to keep a charge a LOT longer than the cig-alike batteries... So, i would go for these, if you absolutely MUST avoid the mod-sized vaporizer.

But, ultimately, the BEST chance of ENJOYING your vaping experience, is to go for the gold, and move strait to a MOD (aka- APV, or: Advanced Personal Vaporizer)
Now-then, if you are willing to go-with a mod, you have a few great options on the market today. Google for something called the EVIC VTC MINI- It will completely & totally satisfy you in every way possible, and the kit comes with EVERYTHING you need to enjoy vaping (except for two 18650 batteries, wall-wart, and the juice!) You'd just have-to purchase the Evic Mini, wall-adapter, and two 18650 batteries, and a bottle of juice. The mod will charge the batteries when you plug it into a wall adapter (sold separately) Alternative to the wall-adapter, you could technically charge by PC USB port (though this is not recommended, as it takes much longer than wall adapter or external battery charger) Alternatively, you can charge the batteries in an external battery charger, which can be had for as cheap as 5 to 10 bucks.
Evic VTC Mini + AC Wall Adapter + two AW IMR 18650 batteries + Juice!
Alternative to the EVIC VTC MINI (having to buy batteries and charger separately) you COULD google for the Ego ONE Mega Kit. This is an all-in-one kit. It will come with the mod (w/ internal battery) the tank that holds and vaporizes your e-juice, and it comes with everything you need to begin vaping today! I highly recommend this kit to those looking for their very 1st mod.
I HOPE I haven't been WAY too confusing, and WAY WAY WAAAY too long-winded. (or... long-texted, lol)
PLEASE, feel free to private message me if you have any questions, or if you'd like me to break this all down into more understandable laymen's terms. To Private Message me, just click on my name, and click "Start a Conversation" that will bring-up a box where you can type DIRECTLY-to-ME! Ok? If you need help, PM me!
<333 I know this is all silly confusing, I know... But we can get you through this, as a community. We become a family, to new vapers whom feel lost in the new lingo & all the choices... You just have-to stick it out, and stick around here long-enough for us to help, ok? I promise, we'll get you fixed-up.
Welcome to the vape community. Welcome to the ECF Family. Welcome Welcome Welcome!
Please, feel free to ask anything u need to ask, & most importantly of all, ENJOY your vaping journey!!
PS. If you're looking for a good e-liquid that replicates true tobacco, true cigarettes, I've found nothing that comes closer than backwoodsbrew BACKO. I usually do-not share this secret openly on the forum, but I made an exception for you, because I know the struggle to find a good e-liquid. I've been around for 7 years now, and nothing has come more-close, than BWB Backo.
Goodluck & Good Vapes.