I don't want to push one seller over another - I use a few of the 'popular' ones, and so far like them all, but not all of them do sample sizes (which i think is what you're looking for?) so you can try before buying bigger ones.
Really the best thing is to first find out who does sample sizes and what flavors you think you'd like best, or what you DON'T want (sometimes easier this way around lol).
Then go down the list of the suppliers on the forum front page, and follow the links by their names to check their websites.
You can then check if they do a sample size and cross reference with the E Liquid reviews.
I know that sounds like a lot of work but its worth it as what may impress ME in a juice might leave you cold
