If you're looking for manga similar to Berserk of Gluttony, you might like these titles.
After a long journey, Noa finds the "Class Change Book." He's done to all to abandon his bothersome "Hero" role and gain a new class... "Monster Tamer."
Rud is a tank of the Hero's Party and is said to have the highest defense ever in history. The party often does labyrinth raids, but to Rud, it means more than just a raid. To cure his beloved sister's illness, he is in search for the wish-granting treasure that might be hidden in those labyrinths. But one day, the arrogant hero kicks him from the party after an unsuccessful raid attempt, blaming it on his skills whose effects he is still unaware of. Without nowhere else to go and nothing to do, he decides to return to his hometown, where his sister is waiting. On his way there, he saves a girl who was being attacked by a monster. Unexpectedly, this girl has an extremely rare skill called "Appraisal". Thanks to her skill, Rud is able to discover the truth behind his unknown skills, which turn out to be very powerful skills. With a defense of 9999 and powerful skills, thus begins the adventure of the strongest tank, Rud!
Many people suddenly find themselves in a white, empty space, where a God-like figure tells them that they are to be reincarnated and sent to an isekai known as Tesla. They are given a limited number of points to spend in various attributes, such as their race and abilities, which will determine their reincarnation into Tesla. Follows a young boy sent there along with his clanmates from an MMORPG, and they plan to stick together and specialize into different skills, just like they did in-game. Although his clanmates and everyone else sent there are strangely accepting of the situation, he finds it too suspicious and decides to go his own separate way, balancing his points out to be an all-rounder instead of a healer. He leisurely goes about life in Tesla as an adventurer, but it slowly starts to seem like there was a reason behind them being sent there...
Whether at the office or at home, corporate drone Yuji Sano works all the time. So when his home PC flashes a message about him being summoned to another world, Yuji restarts his machine...only to find that he's inadvertently accepted the summons! Now in a fantasy world far removed from paperwork and computers, Yuji has just one thing on his mind: waking up from what he thinks is a dream and getting back to the mountain of work he left behind! But this other world has other plans for Yuji, who quickly discovers his Monster Tamer character class allows him to befriend slimes! And thanks to their number, those slimes help him absorb so much magical knowledge that he gains a second character class in the blink of an eye! How will Yuji wield his power now that he's the greatest sage the realm has ever known?! And what about all that paperwork?!
Aizawa Yuri has reincarnated 2 times now and is dead tired of being the emperor of this and that. Using his skills, he aquired a reincarnation artifact, and starts his life in a brand new world!
It’s been five years since strange dungeons opened up around the Earth, spilling monsters into our world. Average citizens everywhere have risen to the challenge to become adventurers, fighting these fantasy creatures and clearing out dungeons as best they can. Among them is Karaboshi Haruki, a 27-year-old rookie overlooked by everyone and…less than successful at beating monsters and finding treasure. Unsure how he can compete with much more powerful adventurers, an opportunity is dropped into his lap–a dungeon suddenly appears right beneath his home! Could this be a place for him to train? Even better, he discovers a Skill Board that allows him to level up faster! The dungeon-diving adventures Haruki has always dreamed of are just getting started.
When seasoned mercenary Loren is the sole survivor of a disastrous battle that destroys the rest of his company, he must find a new way to survive in the world. With no friends or connections, he has no hope of joining an adventuring party–until enigmatic priestess Lapis offers to partner up with him. But there's more to Lapis than meets the eye, and Loren soon finds himself bound to a fate stranger than he imagined.
Despite being a healer, Raust was an adventurer that could only use elementary level heal. With such ability, Raust has trained himself to contribute even just a little to his small group of first-class party. However, Raust’s sentiment bore no fruit. In an outburst of anger because of the failed quest, the party informed him of his expulsion. However, the party members realized something little by little once Raust left the party. Raust’s ability who was training himself had put him in the realm of the top class among adventurers. It was because Raust was in their party that the party was called first-class.
A hardworking salaryman by day immerses himself on weekends in the pen-and-paper roleplaying game Dungeons & Braves, where he plays his favorite character: a max level wizard. When his real life abruptly ends, he is given a second chance as Geo Margilus, his magic user from the game. The powers, wealth, and enchanted loot that he gathered across endless hours of imaginary adventures are now made real. The catch? He's transported to the world of Sedia, a fantasy realm where evil abounds, and ravenous daemons threaten mankind.
Hinoharu Kota is newly married but his wife is never home. Bored, Kota imagines being on a relaxing ski trip to clear his mind. In his "dream" everything goes sideways. Still dreaming, Kota walks through a couple of doorways to shockingly find himself springing into action to save a female knight from a giant spider. Kota discovers he was "Summoned" to this other world as something known as a summon beast, a helper that can be transported from his earth to other realms. As he completes these summoned missions as a summon beast, he can gain magical powers and abilities. As a man without any special skills on his own earth, this might be the best thing that has ever happened to him.