I found a bitcoin wallet.dat file from my old compute, now I install bitcoin core and import it, but it need a password.
Always I used 6 numbers, but it is too slow to try one by one, how should I found it from 000000-999999, address:1BRLC5V3nyEmN4heoov1BVNaYW9zXdSVKj.
Please contact me if you have a quick way, I will send 3 btc as fee, charles87.lee at gmail dot com
There are several tools to do this, and there are several services.
You can start by looking for "wallet recovery service" on this forum or any search engine.
You can also generate a hash from the wallet and use tools like hashcat.