D&D One Shot

The PCs are famous monks who must subdue a venerable yeti. It might involve romance.
There is a famous druid who tries to help them. they share a passion with a character.
The characters start at the scene of a murder. Partway through they encounter lots of vermin. If things slow down a door opens.
It finishes with a reward of a magical tower.

The characters are lawful dragonborn who must put on a fashion show. One or more characters has an inquisitive pet.
It is at a haunted theater which is in the area of a forbiddance spell.
There are a group of rowdy adventurers cursed. And a xenophobic mercenary seeks to win a race of dinosaurs.
At some point someone tries to steal from them.
As the adventure progresses people start dying in different ways

The PCs are religious paladins who must defeat a venerable temple. It might involve fire.
There is a famous farm who has important information for them. they are the rival of a character.
The characters start during a heist. Early on there is a big fight scene. If things get stuck they uncover a secret stockpile.
Afterwards there is a reward of an island temple.

The characters are cursed paladins who must befriend/tame a cursed merrow. Two of the characters are friendly rivals.
It is at an elemental magical laboratory which is cursed by a deity.
There are a pack of hungry outlaws washing themselves. And a foolish leader wants to deliver a glowing Deck of Absorption.
At some point they receive a useful sending.
As the adventure progresses a great evil starts to escape its prison

The characters are insane sorcerers who must make a trade with a reclusive mummy.
It is at a colorful cloud castle which has a portal to the Garden of the Resonant Idol.
There are a family of hostile bandits eating. And a sahuagin baron seeks to protect a possessed weapon.
At some point they notice an obvious clue.
As the adventure progresses a series of grim omens signal the arrival of a scheming high priest