A rather underrated but good fantasy harem novel is 'Overlord'. Ainz Ooal Gown, the main character, has subordinates, some of whom are female, and as he tries to conquer the new world, their relationships develop in an interesting way. There are also many interesting political and power - play elements in this novel that make it stand out in the genre.
One great fantasy harem novel is 'The Rising of the Shield Hero'. It has an interesting concept where the main character is wrongly accused but builds his own party which includes multiple female characters with different personalities and abilities. Another good one is 'In Another World with My Smartphone'. The protagonist gets transported to a fantasy world and attracts a harem of various characters along his adventures.
Well, 'Sword Art Online' also has elements that can be considered part of a fantasy harem. Kirito, the main character, has relationships with multiple female characters in the virtual world. Then there's 'Date A Live'. The male lead has to go on dates with different spirit girls to save the world, creating a sort of harem situation in a fantasy setting.
Chapter 299, "Troops at the Gates, Searching, Completely at a Loss (3)", is the clearest early answer because it turns Li Xuanling's situation into a concrete plot event. Early on, Third Brother, take twenty people to explore this tunnel, sort out.... By the end, From this draft map on the right, it appeared Great Xia had scrambled....
Chapter 348, "Zhu Ling in Dire Straits, Eight Camps Martial Contest, Betting Five Years—East Ridge Has Fallen!", is the clearest early answer because it turns Beining Mountain's situation into a concrete plot event. It opens with If you defend or attack the stage successfully, you can earn one... and closes on This only made Zhu Tong angrier..
Chapter 138, "From now on, let's get to know each other again", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. Early on, Is there such a good deal?. By the end, Could it be that the poison also had a side effect of making a person....
Chapter 300, "Perseverance, Beast Tide Breaks the Barrier (Part 4)", is the clearest early answer because it turns Long Mountain's situation into a concrete plot event. The setup is At your command!" Xia Chuan turned to sweep his gaze across the crowd..., but the pressure keeps building through How many places on your side have detected the movements of....
Chapter 65, "Jiang Li Missing?!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Several minutes later, the room remained silent. and closes on What's the deal with these two?.
Chapter 306, "Helplessness, Shifting Loyalties, Total Annihilation and New Territory (Part 3)", is the clearest early answer because it turns Cheng Guang's situation into a concrete plot event. It opens with Who goes there!" Just as Jiang Ping, Li Xuanhong, Cheng Guang, and... and closes on Meng Ying, after a fifty-meter chase, saw the person to the southwest....
Chapter 347, "Mirror Valley Council, Power Surge, Dajue Temple, Eight Battalion Tournament (Part 2)", is the clearest early answer because it turns Luo Yuan's situation into a concrete plot event. It opens with Xia Hong stepped into the hall and directly took the main seat. and closes on The existing Cold Resistance Levels in the camp had adequate Yangyuan....
Chapter 308, "Shocking Turn, Grave Injuries, and Restless Hearts", is the clearest early answer because it turns Yanhan Blade's situation into a concrete plot event. It opens with But the Li Xuantiang in front of him was different. and closes on Looking at the fissuring forehead of Li Xuantiang, the Yanhan Blade.... The key payoff is that the chapter closes with Finishing off Wu Lin, Xia Hong's face had turned extremely pale, with four wounds on his body still gushing blood;
Chapter 207, "Keep these thirty points for yourself, I don't need them", is the clearest early answer because it turns Su Yinwan's situation into a concrete plot event. Early on, After finishing, Sister-in-law Lan quickly took out the Good....
Chapter 306, "Rebel Collaborators, Chaos and Opportunism, Long Mountain Changes Hands", is the clearest early answer because it turns Xia Army's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Go notify the leader, have him quickly bring the main forces back to... and follows through with Your Li Family is unlucky, producing these two little beasts who let....