It would be nice to have a complete database documenting all PoW algos (including pseudo-code). If someone feels motivated to do it, I'd be glad to sponsor them.
Can you please elaborate on the sponsorship. I understand the equihash algorithm very well, by the way.
It would be very informal. Start writing the documentation for 3-4 PoWs. If it's high quality and think you have what it takes to continue, I'll periodically donate you some BTC whenever you add more PoWs to the doc ($10-20 per hour of work).