I sense many different recommendations in your future...
What are you looking for in the tanks? Do you want something that supports higher resistances to maintain battery life or do you like the lower ohm coils for more vapor? What kind of issues are you having with the coils, just not lasting more than a few weeks? A lot of people love the Subtanks and I believe the Nautilus is still a popular choice. Are you using the Vertical coils? Those seem to give the best results.
I'd check out this sub forum on clearomizers for info:
https://www.e-cigarette-forum.com/forum/forums/clearomizers.750/
Some popular tanks right now are the Smok TFV4 and the Uwell Crown, but that's just a few out of the many tanks.
I myself don't have any experience with clearomizers, more of an RTA person. I'm sure someone will post some first hand experience soon.
Good luck! If you need some sites to purchase from we can supply that too.