A 'beerus absorbed fanfic' could potentially revolve around Beerus, the powerful deity in the Dragon Ball universe. It might be about him absorbing energy or a particular essence. For example, the fanfic could describe how Beerus absorbs a new type of ki energy that he discovers during an adventure. This could then lead to him having new powers or facing new challenges related to this absorption. The story could also involve other characters' reactions to Beerus' new state after the absorption.
There were a few novels that could be recommended, including Those Years Living in the Future World of Dragon Ball, If Dragon Ball, Latiz took Gohan away, and The Strongest Sun Gohan of Dragon Ball. These novels all used Gohan as the protagonist, telling his growth and adventures in the Dragon Ball world. These novels might satisfy your need for Gohan to be the protagonist.
In fantasy novels, the qi absorbed by cultivation included spiritual qi, vital qi, demonic qi, demonic qi, ghost qi, dao qi, and so on. Among them, different types of Qi would have different effects on cultivators. For example, Spirit Qi could help cultivators communicate with heaven and earth and absorb Spirit Qi for cultivation; Vital Qi could temper the body and become a Vital Qi Warrior; and Demonic Qi, Devil Qi, and Ghost Qi were often used to cultivate evil techniques.
In this fanfiction, Gohan might learn valuable life lessons from Grandpa Gohan. Maybe Grandpa Gohan would teach Gohan some old - fashioned martial arts techniques that have been forgotten over time.
In such a fanfiction, perhaps future Gohan could warn present - day Gohan about upcoming threats that he has faced in his own timeline. He might share his experiences and knowledge, which could make present Gohan a stronger fighter and a wiser person.
Piccolo might also be a savior. He has a soft spot for Gohan since they trained together. He could use his strategic mind and powerful attacks to outwit Raditz and rescue Gohan. Maybe he teams up with Goku for an even more epic rescue mission.
Perhaps Gohan's own overconfidence could lead to his death. He might underestimate an enemy's power or a dangerous situation and make a wrong move that results in his end. For example, he could rush into a fight without proper preparation thinking he can handle it easily.
A possible plot twist could be that future Gohan is actually an impostor sent by an enemy to manipulate the real Gohan. Another twist might be that when they meet, their powers combine in an unexpected way that causes some sort of time rift or a change in the timeline.
Naruto would probably be the most interested. He loves making new friends and Gohan's power would surely catch his attention. He'd be eager to learn about Gohan's world and his abilities.