Śrī Matre Namaḥ, 

Thank you, didn't know about this resource. Another wonderful free resource, probably the best on internet to learn Sanskrit (basic to advanced), understand and recite stotrams and works in Sanskrit is Vyoma Samskrta Pathasala (https://www.sanskritfromhome.org/). A lot of the content is absolutely free (videos, audios, and PDFs) and the amount for paid lessons is very nominal.

Some of the freely available content below:

Getting started with Sanskrit
https://www.sanskritfromhome.org/course-details/getting-started-with-sanskrit-7175

High School Sanskrit Grammar Made Easy
https://www.sanskritfromhome.org/course-details/highschool-sanskrit-grammar-12187

Learn to Chant Lalita Sahasranama Stotram
https://www.sanskritfromhome.org/course-details/chant_lalitasahasranama-7269

Complete Soundaryalahari – Focussed Learning
https://www.sanskritfromhome.org/course-details/soundaryalahari-english-short-meanings-7334

Their YouTube channel
https://www.youtube.com/c/LearnSanskritOnlinevyomasamskrtapathasala

The team is also very helpful in answering your questions related to Sanskrit.

Śrī Gurubhyo Namaḥ

Śrī Matre Namaḥ,

Introduction to Basic Spoken Sanskrit by Prof. Anuradha Choudry - https://www.nptel.ac.in/courses/109/105/109105135/

Intermediate Level of Spoken Sanskrit by Prof. Anuradha Choudry - https://www.nptel.ac.in/courses/109/105/109105169/

Śrī Gurubhyo Namaḥ