Don't have a lot of experience with interviews sadly. But I hope to change that very soon.
- Data structures cheat sheet
- Pramp - 1 hr online interviews where you interview someone and they interview you back.
- Leetcode - Collection of 700+ interview coding challenges. Should be able to solve any random medium difficulty question within 15 minutes if you want a shot at the big companies. Keep doing a couple of these per day till you get really good.