Cowboy Bebop is a great 1990s and anime series because it mixes episodic and serialized stories over its twenty-six episodes. The series has several standalone episodes focusing on our heroes hunting down a bounty.
The twenty-six-episode series starts as a standard mecha anime story about a teenager being forced to pilot a mecha in a battle for global safety but slowly transforms into something much more introspective.
Kill la Kill
Kill la Kill may not be the most introductory anime to watch, but it is one of the most well-received anime. The twenty-four-episode series follows Ryuko Matoi as she enrolls in a strictly hierarchical academy searching for her father's murderer.