Depends on what else you're looking for besides gameport, and whether PCI versus ISA matters.

Gameports were great because you could plug MIDI adapters into them and use whatever outboard MIDI synth you wanted.

Yes, I have a Gameport<->MIDI adapter that I used to use with an SB PCI128.

Now I use an USB<->MIDI adapter to interface Windows 7 and DOSBox with my SC-88 and MT-32.