I recommend a few novels. Super Synthesis System, an urban supernatural novel written by Wahaha Eight Treasures Porridge. The main character Chu Tianlin was hit by the Furnace of Good Fortune. This furnace could use essence, qi, and spirit as fuel to refine treasures, such as Yunnan Baiyao turning into black jade intermittent cream, piggy bank turning into a treasure bowl, etc. The system upgrade flow was completed, and the book could be read again. " Super Refined Spirit " was said to be a fantasy novel written by a little monster. Little Specter possessed the body of the useless young master and traveled the Black Tortoise Continent with his Ghostblade skills. He did not have the aura of a king and relied on his hot blood to become strong. There were nine levels of alchemists. 'Super Alchemy' was a Xianxia cultivation novel written by Remnant Dream of Ten Years. In the 23rd century, Zhou Yile, an online game player, transmigrated to the cultivation world. With his game synthesis skills, he created a legend with full perceptual root bone under the great tribulation. " Divine Level Celestial Realm System ", Liu Sandao's game novel. Fang Yan transmigrated to the Cultivation World and brought the Immortal World System. He refined pills and weapons, leveled up, and fought monsters. It was a masterpiece of the system style. Super God Support System was a fantasy novel written by Yi Jiang. Chu Ye had transmigrated to the super god auxiliary system and was on the path to becoming the strongest.

Ling Yu, who had returned to his hometown to help his parents manage the barbecue stall, had obtained a Super Divine Refining System. This system could refine everything, such as clothes that could be warm in winter and cool in summer and increase their defense to become invulnerable. Shoes that could allow people to come and go without a trace after being refined. Books that could be refined into skills could also be refined into "divine beasts". Other than that, there were also some plots that involved fishing and delicacies related to the refining system, such as refining bait to catch a double-headed fish.
You can read the full text of the Super Divine Eye System on Youshu. It's free and there are no typos.
The Super Divine Beast System was a high-tech system that could help contracted beasts continuously purify their bloodlines and awaken their talents. It appeared in the novel " Super God Familiar: Starting from the Black Technology System." The protagonist Yu Yang accidentally fell off a cliff and transmigrated to a world where familiars were the mainstream, and obtained this system. The system had given him three pet contracts, including the Winged Dragon of the Sun God, the Sky Dragon of Osiris, and the Colossus of Obelisk. This system could allow his contracted beasts to continuously increase their bloodline purity and awaken their talents, allowing them to grow into powerful existences. The emergence of this system allowed Yu Yang to nurture cats with low talent to become Elemental Sacred Spirits that could fight dragons.
"Douluo: I Have a Super God System" was a light novel written by Hoshi Jianchen. The story was about the protagonist who accidentally transmigrated to Douluo Continent and became a sickly person adopted by Sword Douluo. He had thought that he could only rely on Sword Douluo's reputation to live a plain life, but he had unexpectedly awakened the super divine system. Through the system, the protagonist obtained a powerful martial soul and skill, and began to display astonishing strength. This novel had a total of 268 chapters and was completed.
There were a few recommended novels about the refining system that he could read. Among them were the Undying Heavenly Technique at the Beginning, the Omnipotent Soul Master, the Strongest Cultivation Upgrade System, the Divine Level Upgrade System, and I Can Obtain Proficiency. These novels covered different topics and storylines, which could satisfy the readers 'needs for refining system novels.
The Immortal Refining Divine Cauldron was a fantasy novel written by Salted Fish Soaked Rice. The story took place in the Mysterious Star Continent, where martial arts were supreme. The protagonist, Fei Ren, was a young beggar who miraculously survived a life-and-death crisis and obtained an Immortal Refining Divine Cauldron that could refine all things. Through refining rare herbs and cultivation, Fei Ren's cultivation kept increasing. He had refined heaven-grade treasures and divine weapons. The story described how Fei Ren went from a nameless wandering cultivator to the supreme immortal cultivator. The latest chapter of the Immortal Refining Divine Cauldron was Chapter 921: Fei Ren Becomes Immortal.