Hmm, rewarding and a great story but no preference for style or genre. That's tricky 'cause there's like a million things to choose from and I don't want to overload you with a huge list of too many choices either... but here goes. I'm going to try and pick one for each of a bunch of different genres. I'll throw a picture for each one, too, 'cause sometimes the visual style is the real hook.
Comedy -
Kakushigoto - A manga artist who got famous drawing toilet humour series is now a single parent and believes he must hide his real job from his daughter.
Action/Adventure -
Rage of Bahamut: Genesis - A swashbuckling bounty hunter tries to hook up with a naive girl but she turns out to be a demon and grows a tail on him, refusing to remove the tail until he takes her to Helheim (which he boastfully lied about knowing a shortcut to). The two journey together to Helheim, pursued by angels, demons, and a disgraced knight.
Drama -
A Place Further than the Universe - Four girls from different walks of life join together to force their way onto an Antarctic research expedition.
Sports -
Haikyuu - A kid and his rival both end up going to a high school with a once-famous volleyball team that has now fallen on hard times.
Romance -
Sing Yesterday for Me - After graduating from college, a man struggling with future goals reconnects with an old crush while being pestered by a new friend.
Psychological Thriller -
Death Parade - A heavenly bartender and his assistant pit the recently dead against each other in extreme versions of bar games to decide whether they will be reincarnated or damned.
Action/Thriller -
Akudama Drive - In a dystopian cyberpunk future setting, a mysterious benefactor blackmails a group of cutthroat mercenaries, and also one ordinary girl who was in the wrong place at the wrong time, into staging a dangerous train heist.
Something Weird (but Good) -
Granbelm - What's more anime, mecha or magical girls? How about both! Mage girls pilot giant magic robots in a battle royale to take control over the source of all magic, with some shocking revelations along the way.
Aside from Haikyuu, all of those are short (11~13 episodes), self-contained stories with real endings that have a climactic payoff. Couldn't think of a good one-season sports show with a big payoff, but in Haikyuu's case each season ends with a big climactic match so it still delivers plenty of payoff.
Alternatively, if you want to jump on something really, really recent, Maark and I are both watching a currently-airing show called
Mashiro no Oto about a shamisen player who loses his motivation and sound after his grandfather dies, and is now on a journey to discover his own unique sound and fall in love with the instrument again. Only 2 episodes have aired so far so we can't promise it'll have a huge payoff, but the musical performances in it so far have been mesmerizing so it is already worth it and probably is going to end well, too.