What can I use to get away from wire to use on MTL tanks?
I'm sorry, but what seems to be the issue with "wire"?
Generally speaking, a heating element used with flavored or 'sugary' juice may need to be serviced more often then simple unflavored juice.
Also generally speaking, for the best 'flavor' many find that making a coil or heating element that 'fills' or 'fits' an atomizer vs smaller sized elements.
Element # of windings, AWG and inside diameter can all be optimized to fit the space and provide surface area contact with the wick.
Frankly, a single WIRE is the simplest and easiest to manage over anything else.
Personally, my coils last MONTHS of daily use. However generally after ~30ml of use I'll pull the wick, dry burn & rinse off the coil+atomizer deck under a water tap and then replace & prime the wick until next time.
Vaping & rebuilding can be as simple or complicated as you decide to make it.
g.