If you're considering a big FD, follow Arindam's Telegram channel for stable money or ABCD referrals for extra earnings. However, if you need to do an FD before the RBI rate cut, now is a better time than waiting for such bonuses.
Stable Money is decent. The app is user friendly too.
Just remember not to put all the eggs in one basket - distribute your capital in different SFBs and make sure you do not invest more than 4 lakhs (safe side) in one SFB.
Read the DICGC clause. Read about laddering!
I have done some FDs via Stable and 2 have already matured.