Hey, I recently cleared a bunch of interviews and would be happy to help you. You need to brush up your DSA, almost every company is asking them. Practice the top 150 problems from Neetcode's website, most questions would be based around those. For HLD, I read ByteByteGo. The first 10 chapters would give you everything you need in terms of HLD. For LLD I practiced everyday by designing apps that we use everyday.
Also a very important point is to be thorough with your CV. If you are unsure about a few key technologies that your current company uses, ask your peers and managers. Get good estimate of your current platforms throughout, monthly/daily active users, HLD of your current platform, etc. Also brush up on computer science fundamentals such as database normalisation, indexing, mutex locking, caching, etc.