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there’s a lot of choices actually, presumably online learning since no classroom trainings nowadays.
i personally self studied most of it, and bought extra practice exams and question banks. i don’t think you need courses per se for L1 in particular.
that said, there are so many: kaplan schweser, uworld, bloomberg, wiley, adaptprep/salt solutions, mark meldrum, fitch and ift as you said. worth checking out their packages and see what you need, to suit your learning style?