Noida property search stress - sector selection hi mushkil!

Okay I'll be honest – I'm totally overwhelmed looking for a bigger place in Noida. Need at least a 3BHK now that the kids are older. I'm looking mostly at ready-to-move options after hearing so many horror stories about delayed possession. My wife's priority is a safe neighborhood and good schools nearby. Sector 38 seems nice, but it's pricey. Is it worth the extra cost compared to maybe Noida Extension? Not sure if I should focus on a specific builder like Grihapravesh Buildteck Pvt Ltd or just look at the area. Rent vs buy is also a huge debate. EMI is scary! What's the real rental yield in Noida these days? Should I just keep renting? Any advice from people who've bought recently?