So here are two of my cedars that are currently in a similar situation to yours, akhater.
You'll notice that what I've tried to do is prune the foliage shoots at the tops of the trees a bit at the beginning of the growing season so that energy goes into the lower branches. As you see in my trees -- and in yours -- there's really no "sacrifice leader" the way there is with a pine. With these straight cedars, I guess you could say that the the whole upper section of the trunk is "sacrifice leader."
One main point of having the low branches is serve as sacrifice branches to help thicken the trunk.
Eventually, these branches will thicken the trunk enough that they can either be removed. Of course, you want enough low branches that some of them can be sacrifices, and some can be part of the design. The top portion of the trees will also eventually be removed and the apex replaced with one of the side braches. Between the low sacrifice branches and the top removal, I think you should be able to get good taper.
In the meantime, you also have to identify which of the branches in the lower and middle portion of the tree will be design branches. You have to make sure to cut them back them early on in the process to achieve forking close to the trunk, and then prune them each year to encourage pad formation.
I think you can combine a low branch's role as sacrifice or design, basically by pruning it back once early to achieve a fork close into the trunk, and then use one of the forks for design and the other let grow wild. As long as there are SOME (even small) low branches, and SOME buds on the branches close to the trunk, you can turn it eventually into a sacrifice or design branch.
Akhater, your tree definitely seems to still have some low branches which can be used to good effect - but I think you're going to have to start pruning the stuff up above it to regain balance for development.
Also -- take what I've said here with a grain of salt, as I'm a beginner as well.