Saptarishis are Seven Great Sages mentioned in Hindu Scriptures. Even though, Kashyapa, Atri, Bharadwaja, Vishwamitra, Gautama, Jamadagni and Vashistha are renowned as Saptarishis is majority of scriptures, some other mentioned different names based on Manvantaras, etc.
The earliest list of the Seven Rishis is given by Jaiminiya Brahmana 2.218-221: Agastya, Atri, Bhardwaja, Gautam, Jamadagni, Vashistha and Vishvamitra followed by Brihadaranyaka Upanisad 2.2.6 with a slightly different list: Gautama and Bharadvaja,Shandilya and Jamadagni, Vashistha and Kashyapa and Atri, Bhrigu. The late Gopatha Brahmana 1.2.8 has Vashistha, Vishvamitra, Jamadagni, Gautama, Bharadvaja, Gungu, Agastya, Bhrigu and Kashyapa.
Saptarishis in each Manvantara
Saptarishis in Swayambhu Manvantara
Marichi, Atri, Angiras, Pulaha, Kratu, Pulastya, and Vasishtha.
Saptarishis in Swarochisha Manvantara
Urja, Stambha, Prana, Nanda, Rishabha, Nischara and Arvarivat
Saptarishis in Auttami Manvantara
Kaukundihi, Kurundi, Dalaya, Sankha, Pravahita, Mita and Sammita (Sons of Vasistha)
Saptarishis in Tamasa Manvantara
Jyotirdhama, Prithu, Kavya, Chaitra, Agni, Vanaka and Pivara
Saptarishis in Raivata Manvantara
Hirannyaroma, Vedasrí, Urddhabahu, Vedabahu, Sudhaman, Parjanya and Mahamuni
Saptarishis in Chakshusha Manvantara
Sumedhas, Virajas, Havishmat, Uttama, Madhu, Abhinaman, and Sahishnnu
Saptarishis in Vaivasvata Manvantara
Kashyapa, Atri, Vasistha, Vishvamitra, Gautama Maharishi, Jamadagni and Bharadvaja
Saptarishis in Savarni Manvantara
Diptimat, Gslava, Parasurama, Kripa, Drauni or Ashwatthama, Vyasa and Rishyasringa
Saptarishis in Daksha-Savarni Manvantara
Savana, Dyutimat, Bhavya, Vasu, Medhatithi, Jyotishman, and Satya
Saptarishis in Brahma-Savarni Manvantara
Havishman, Sukriti, Satya, Apammurtti, Nabhaga, Apratimaujas and Satyaketu
Saptarishis in Dharma-savarni Manvantara
Nischara, Agnitejas, Vapushman, Vishnu, Aruni, Havishman and Anagha
Saptarishis in Rudra-Savarni Manvantara
Tapaswi, Sutapas, Tapomurti, Taporati, Tapodhriti, Tapodyuti and Tapodhana
Saptarishis in Rauchya Manvantara
Nirmoha, Tatwadersin, Nishprakampa, Nirutsuka, Dhritimat, Avyaya and Sutapas
Saptarishis in Bhautya Manvantara
Agnibshu, Suchi, Aukra, Magadha, Gridhra, Yukta and Ajita
Names of Saptarishis as mentioned in major scriptures
Saptarishis mentioned in Shatapatha Brahmana and Brihadaranyaka Upanishad
Atri, Bharadvaja, Gautama Maharishi, Jamadagni, Kashyapa, Vasistha, Vishwamitra.
Saptarishis mentioned in Krishna Yajurveda – Sandhya-Vandana Mantras
Angiras, Atri, Bhrigu, Gautama Maharishi, Kashyapa, Kutsa, Vasistha.
Saptarishis mentioned in Mahabharata
Marichi, Atri, Pulaha, Pulastya, Kratu, Vasistha, Kashyapa.
Saptarishis mentioned in Brihat Samhita
Marichi, Vasistha, Angiras, Atri, Pulastya, Pulaha, Kratu.