There was a thread about picks about a month ago.
I too had the same question.
One recommendation was to get these round "point-less" picks.
Well I did, and they are indeed pointless.
They suck. The reason is because of the indentation right in the center of the round/disc pick.
There is not good way to hold the darn thing and forget about getting pinch harmonics cause you can't slight the pick into a good position to get a bit of finger meat by which to pinch the string.
Someone also pointed me towards faux tortoise shell picks.
Very pricey but the description and reviews sound really promising.
Do a search for that thread and the info will be in there if you're interested in getting the most expensive pick you've every bought, but they claim to last a very very long time, so that somewhat offsets the cost.