It's very hard to look at a list like that and expect someone to list a country that would be easy to work,
Go to clublog and look for the low hanging fruit, basically look at your needed entities on 80m and start at the least most wanted and see what is active,
To get the list on the home page click Timelines on the left then needed entities on the bar in the center then filter by band and away you go,
If you are not a registered user of Clublog, You need to register and upload your log there to use all the tools on there to help you work DX,
For me these are my 10 least wanted entities on 80m, and I don't do much 80m so that is why these are all pretty common places,
TI COSTA RICA 255
OD LEBANON 256
TK CORSICA 257
HZ SAUDI ARABIA 259
KH6 HAWAII 265
A4 OMAN 266
HL REPUBLIC OF KOREA 270
CX URUGUAY 277
CE CHILE 279
ZS REPUBLIC OF SOUTH AFRICA 286
Cuba is extremely active on all bands and modes and is basically no different than working Florida on 80.
As suggested, contesting is probably the way to go given you are roughly at the 100 mark.
Remember that the T4 prefix is also sometimes issued for Cuba, especially for contests like WPX.
Aruba and Curacao are also good bets and both are activated for just about every contest. Really, anything in the Caribbean you don't have is a good bet and doesn't require you being active at 2AM.
He has already worked all of those countries that you just mentioned. The list he posted was countries he had already worked, not ones that he still needs.