Need help picking a new mod :)

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So far i am looking at the Alien, the Ijoy PD270 and the Eleaf Ikonn 220w. Kinda on a tight budget so any suggestions? Maybe i'm missing better options?
I currently run a Ipower 80 but need something else as it's not enough to last a full day and would like to get one with replaceable batteries.
Do not have an external charger just yet but will purchase hopefully shortly after mod.
Thank you in advance.

Need help picking a new mod :)