rolls of $2.50, $3, $5, $10 and $20 coins.
Good luck finding a bank that can order them though...
In all honesty, your best bet is to buy bags instead of rolls. As bags are only filtered by the one machine and there is frequently coins that are similar in size, but not exact mixed in (usually foreign).
Any denomination could have one if you are lucky. The big problem is being at the right place at the right time as not many people with gold coins accidentally mix them in with their pocket change.
Finding a gold coin in a roll is a lot harder (I would say at least 1000 times harder and I still feel I am guessing low) as it processed a second time and must pass both the original coin machine's size/weight filter as well as the rolling machine's size/weight filter.