Personal recommendations can be found in my trip report from August -
https://www.coffeeshopdirect.com/forum/viewtopic.php?t=5859
I was particuarly keen on the following Sativa's - Super Silver Haze (SSH), Laughing Buddah, Amnesia Haze, Resin Haze, Silver Bubblegum, Mako Haze and Arjan's Ultra Haze #2. I am also a huge permanent fan of Diesel, and buy that as my regular weed, as well as orangebud.
Cheese is a lovely earthy Indica. An absolutely wonderful buzz, not total couch lock, and it is essential to have some indica on you if you are smoking mainly Sativa's, because sometimes you just get too high and need to come back down to earth for a bit.
Although Cheese is fantastic, and I always get a bag, I also love Blueberry Cheese, which is a combination of 2 indica strains, Blueberry and Cheese. None of these Indica's I have mentioned are particuarly heavy, so they are the ideal accompaniment for a Sativa smoker.
Overall, they would make a fantastic list of smokes, but there are so many more that I haven't tried, although if you read that trip report, you'll see I did have a go at trying to smoke them all!!
The other things is that the quality and supply of the various strains changes almost daily, so a really good batch could only last a relatively short period of time, so while you can take it as a guide, you always have to inspect the gear yourself in each shop to make the right choice.