Not exactly what you are asking for but you can always try a touch of EQ emphasis around ~3kHz, center of the vocal consonant region critical to speech intelligibility. That's also the "presence" region where some emphasis can decrease the apparent distance to the source, making a recording sound a bit clearer and closer than it originally was. Tread lightly there though, too much will quickly become grating and fatiguing. Some mics seem cleaner in that region than others making the recording capable of accepting more emphasis before things get harsh, and it really depends on what else is happening in that frequency range in addition to the vocals. A dynamic EQ, or band-limited compression set carefully can help in pushing a bit more emphasis into that region without getting it sounding overly bright and harshly penetrating.
Yeah, application of EQ is invitation to the dark side (even if emphasizing the brighter side of things) and something of a pandora's box, but if open to going there, a little attention to this region can help significantly. Its not capable of re-balancing things in a dramatic way, but can sometimes make the difference between acceptable and not.