User Recommendations for Fullmetal Alchemist: Brotherhood

Both animes have some protagonists who undertake a long journey: they visit numerous locations, do research and meet a large cast of characters with their own story ... in order to fulfill a mission. Both works refer to existential questions of the famous philosopher Friedrich Nietzsche: The most famous theories: "GOD IS DEAD" and the "ÜBERMENSCH (SUPERMAN)". They both have some similar soundtrack. Listen: "Envy Revealed" (FMA-B) and "The Seeds of Time" (Monster). In both OSTs there are drums that sound like a 'military march' or that allude to the 'footsteps of a monster'.

Lots of digging and unfolding, tons of twists, great character development.

While they tackle different audiences, i say they are both fantastic in their narratives and characters. FMAB and Monster also have extensive lore and history (monster set in the 80s and the lore of germany) while FMAB has immense lore and a great narrative that ties it all together. Both have fantastic antagonists and deuteragonists (grimmer, truth, father, roy mustang, lunge etc). Both protaganists go through hard decisions and have to be forced to make decisions. Both can be interpreted to be a 'hyporcrite'. Great writing in both and great uses of religious symbolism are present in both. Great OSTs and music for both as well