In a 'Phineas and Ferb meet Zak Storm' fanfiction, it could start with Zak Storm's ship getting caught in a strange storm that sends them to the world of Phineas and Ferb. The two groups meet and are initially confused. But then they discover that they can learn a lot from each other. Phineas and Ferb show Zak Storm and his crew how to have fun in their own unique way, like building a giant waterslide in the middle of town. Meanwhile, Zak Storm tells them about his seafaring adventures and the magic that exists in his world. Eventually, they have to work together to get Zak Storm's ship back to his world. Ferb might use his skills to repair any damage to the ship, and Phineas could come up with a way to create a portal to send them back.
Definitely Phineas and Zak Storm. Phineas is always full of wild ideas and Zak Storm is a brave and adventurous sea captain. Their personalities would either clash in a really fun way or they'd inspire each other to new heights of adventure.
I'm not entirely sure specifically who Zak Monday and Zak Saturday are in the context of yaoi fanfiction. It could be characters created by a particular author or within a specific fan community. They might have unique personalities and relationships that are explored in the yaoi stories.
You can try fanfiction websites such as Archive of Our Own (AO3). It has a large collection of fan - made stories from various fandoms, and there's a good chance you'll find some zak monday x zak saturday fanfiction there.
One great story could be about Zak Monday and Zak Saturday teaming up to solve a mystery that involves both their worlds. Maybe they have to stop an ancient evil that is threatening to destroy the balance between their respective realms.
Sorry, I don't have any specific Zak Monday x Zak Saturday yaoi fanfiction to recommend as it's a rather specific and perhaps not very mainstream pairing. You could try searching on dedicated fanfiction websites using those names and the 'yaoi' tag to see if you can find any relevant works.
I'm not certain if Zak Bagans has made his love story public. He seems to focus more on his work in the paranormal realm. He may prefer to keep his personal love life private, so it might not be something that is easily accessible to the public.
One common theme could be friendship. Cece and Ty might be portrayed as best friends who support each other through thick and thin. Another theme could be growth. For example, they both grow as individuals while facing different challenges together.
Cece and Schmidt have a really cute love story. They started as friends but there was always an underlying attraction. They had many ups and downs. For example, they faced issues related to their different backgrounds and career aspirations. But their love prevailed. They shared many sweet moments like their first date which was filled with nervousness and excitement. Eventually, they overcame all the obstacles and got together, which made everyone around them happy.
Love is a common theme too. Sometimes it's a budding romantic love, and other times it's a deep platonic love. Also, growth is often explored. They might grow as individuals while still maintaining their connection. For instance, Austin could overcome his stage fright with Cece's support in a fanfic.