I don't usually chase my drinks. I think if you can't handle something straight, you don't need to be drinking it.
But if I do chase, my chase of choice is beer. Preferably cheap beer, so that it's bad taste distracts you from the bad taste of the alcohol. Plus, you don't want to waste good beer chasing bad alcohol. It's cheaper AND you get drunker faster. It's a win win. 30 chasers = $10-$15? Can't beat it.