If I'm to receive like 30 different deposits from 30 different wallets into one wallet, which will make all these transactions appear like separate outputs if I want to send them all at once to one wallet,
First, you must be clear here.
Do you have 30 different addresses, UTXOs in a same wallet or Do you have 30 different addresses in 30 different wallets?
If it is a first situation, 30 different addresses in a same wallet, it will be easier to consolidate your 30 UTXOs (inputs) into one output. You only have to wait for Bitcoin mempools to be cleaned and give you cheap transaction fee rates to consolidate your inputs.
Guide to consolidate small inputs.
If it is a second situation, it will be more complicated and you will have to import 30 private keys into one wallet and sign your consolidation transaction from that wallet.