I get it that you want to find and convert the best opportunity in the most optimal time, but sometimes the best idea is to lean into you want you enjoy to do, especially if that thing is professionally relevant.
It's a long way to say 'build a project using Electron/React but don't do it just to get a job'
If it's faang then leetcode & grokking the system design interview will work for entry/mid level. Otherwise it seems to vary from startup to startup in terms of how they'll assess you.