Best resources for LLD and HLD using C++? (Is Shrayansh Jain's playlist too theory-heavy?)

Hey everyone,

I’m currently preparing for a role switch and looking for solid, structured resources to master both Low-Level Design (LLD) and High-Level Design (HLD). My primary and preferred programming language is C++.

One of my seniors strongly recommended Shrayansh Jain's (Concept & Coding) LLD and HLD playlists on YouTube. I don’t mind investing in the channel membership if it’s genuinely worth it, but looking through the structure, it feels a bit theory-heavy. I learn best when things are highly practical and implementation-focused rather than just purely conceptual.

For those who have taken it or used other resources:

1. Is Shrayansh's course worth it if my goal is to implement a machine-coding round?
2. Since most popular LLD content out there is flooded with Java/Spring Boot examples, what are the best high-signal resources, repositories, or playgrounds for handling LLD specifically in C++?
3. Any gold-standard recommendations for HLD that focus heavily on practical trade-offs rather than generic theoretical architectures?

Appreciate any leads, GitHub repos, or course suggestions. Thanks!

https://redd.it/1uhv7cu
@r_cpp