Talks in Tamil on Thirumangai Azhvar’s divya prabandham Thirukkurunthandagam, based on poorvacharya commentary, by TCA Venkatesan Now available on Bandcamp: https://srivaishnava.bandcamp.com/album/thirukkurunthandagam-meanings-tamil
Thyagaraja Ramayanam
Harikatha in Tamil by T S Balakrishna Sastrigal https://archive.org/details/tr-tsbs
Vedartha Sangraha Sarala
Commentary for Ramanuja’s Vedartha Sangraha, in Tamil by Veerapuram Sadagopachariar Swami http://acharya.org/bk/pb/vs/vss.pdf