Fullmetal Alchemist, Shingeki no Kyojin Recommendations
No, there are no giant monsters in FMA, no there is no alchemy in Titan. In both of them, however, there is an alternative modern world with technology both below and exceeding what we have now, also the government plays an absolutely massive role in a similar fashion to Titan with their corruption and having the main characters all be tied to it. I don't know what it is exactly, but I just know if you like Titan there is a strong chance of you liking this
These series have compelling plots and intriguing characters. They contain teenage heroes and epic battles, intense, action-packed fights and some occasional flirting
SNK: a threat that later in the story is shown to be not what it initially seemed
FMA: a mysterious story that involves the foundation of a country
Both have the presence of a huge conspiracy to decept people.
And both are great hahaha