Securitisation investor reporting modelling (building) online courses

Apologies if this is a question asked 100 times already

I am looking for online courses which would help me build or model securitisation investor reports. This is usually done by Analytics teams in Structured Finance departments, but is a skill I would like to develop

I want to learn basic skills and best practices in building securitisation investor report models, building report models from scratch by reviewing the relevant legal documentation (and reviewing & modelling servicer support data).

Do you know any Udemy courses which would help? Are there any good online courses specifically on Analytic Investor Report modelling that you can recommend?

My legal document review skills are a bit weak so courses which build on that from the Analytics & Report modelling perspective would be perfect

My role is excel based rather than using online portals such as Solvas