If you are new to drinking sake, a sake brand called Jozen Mizuno Gotoshi 上善如水 would be best for you.
It has really smooth light feeling but is still very tasty and not so sweet.
Don't get me wrong, but it is sometimes said to taste like water.
I felt that its natural fruity flavor is similar to melon. Although, the ingredients don't include any fruits.
This sake has about 14-15% alcohol. I prefer it cold to warm.
I bought this bottle (720ml) for about 1300 yen at a liquor store in Tokyo. This is not cheap sake but it is affordable and worth trying.
When I was in my early twenties, I used to drink mainly cocktails. However, this sake changed my mind.
Nowadays, sake is my favorite alcoholic beverage, and I often try to drink more unique taste sake than Jozen Mizuno Gotoshi.
If you are new to drinking sake and start by drinking one's that are cheap prices, strong and have unique flavors, probably you will build a dislike for sake.
So please try to first drink sake that are not as strong flavor and on the lighter side like Jozen Mizuno Gotoshi 上善如水.
Shirataki Sake Brewery 白滝酒造
Paid sake tasting in Tokyo
Sake Brewery SUIGEI in Kochi 高知 Prefecture