Being Peruvian and being told my family has Indigenous ancestry, I have read up on Inca history but I feel that there must be stories and histories that were actually authored by Indigenous people giving me a different perspective and breadth in my hope to try and make some connections on the history that no one in my family can recall sadly.
Out of curiosity, what histories have you read? Any chroniclers in particular? I ask because most of the chroniclers were Spanish; one notable exception being Guaman Poma de Ayala, who was the son of a Spaniard and an Inca princess.
As mentioned, Felipe Guamán (or Huamán) Poma de Ayala - wrote the Nueva crónica y buen gobierno in 1615. However I think Qhapaqocha is confusing him with Garcilaso who was mixed. Poma was fully indigenous but raised among the Spanish.
Gómez Suárez de Figueroa (penname "El Inca Garcilaso") wrote Comentarios Reales de los Incas in 1609 and Historia General del Perú in 1617.
Titu Cusi Yupanqui, one of the Incas of Vilcabamba, dictated the Instrucción del Inca Don Diego de Castro Titu Cusi Yupanqui al Licenciado don Lope García de Castro in 1570. This is available in English under the tile "An Inca account of the Spanish conquest of Peru".