How to prepare for LLD?

There are lot of resources for HLD, however, I'm not finding much related to LLD. Also, some interviews revolve around database modeling and/or services design/OOD design etc but how to go about "Design pub sub system" like questions. Any pointers would be helpful.

Note: Most of the startups in India are interested in LLD than HLD. So any systemic approach for acing such interviews would be helpful

Tc: 🥜🥜
YoE: 3

#engineering #software #swe