Kill la Kill: Ryuuko, Mako, Satsuki, and Nonon,

Freezing: Satellizer, Holly, Rana, Elizabeth, Cassandra, Julia, Charles, Chiffon, Cassie, Roxanne,

Puella Magi Madoka Magica: Madoka, Homura and Mami, (Maybe Sayaka and Kyoko)

Chivalry of a Failed Knight: Stella, Kagami,  Ayase, and Touka, (Maybe Shzuku)

Hyakka Ryōra: Jubei, Kanetsugu, Sen, and Yukimura,

In the Land of Leadale: Cayna, Mimily,

In Another World With My Smartphone: Elze, Linze, Yae, Sushie, Yumina, Leen, Lucia, Hildegard, Sakura, Fmeale Touya, Charlotte, and Tsubaki,

Kamen Riders: Izu, Poppy, Reika, Tsukuyomi, and Ora,

How NOT to Summon a Demon Lord, Rem, Shera, Alicia, Rafflesia, Lumachina, and Rose, 

Our Last Crusade or the Rise of a New World: Aliceliese, Sisbell, Mismis, Elletear, Rin, Nene, Shanorotte,

Scarlet: And this is not even the full harem