Even with people doing good work in understanding Kant (like Paul Wolff), you still end up with the problem that this approach  has kinks that just do not seem to go away.  You could at that point look at Schelling or Fichte which are not Kantian at all, or you could take the Fries approach which is a modification of Kant. [It is not psychologism-using the mind to explain none mind based facts.]

Or you could take the Hegel approach. But that approach is certainly not to the liking of any Kantians. And at lot there depends on which initial texts one takes. For some reason I read the Logic [that part of the Encyclopedia] first and that fit completely into my understanding of Plato and Plotinus. [Ever since then I have never understood the complaints about Hegel.]  

And you could combine both. After all Hegel is mainly interested in building his Metaphysical system. he does not care about the Mind Body Problem. While Kant [and Fries] are involved in that very much so-- in answering Berkeley and Hume.   

[Incidentally, the Fries approach needed a certain amount of development. Leonard Nelson added a bit of clarity to it [as mentioned in Dr Kelley Ross's web site]. But even more so--the Friesian School of Nelson could not deal with the Special Theory of Relativity and even less with the General Theory of Relativity. That includes Nelson himself and all those who followed him until Gretta Hermann.]