Boosting quiet voices while removing background noise

My friends and I were on a Discord call together doing a 3-hour reading of a game — one of them suggested that I record it, so I pulled up OBS. However, I configured my settings wrong, and didn’t test the audio beforehand. I didn’t realize until the end of the recording that you could barely hear anyone on the call (the configuration for my own mic was fine). My computer fans are quite loud as well, covering them even more.

Is there any way I can salvage this? I’m just posting the first few seconds for reference. Thank you so much in advance for your help!