It really depends on what they are into.
Ideally it will be something short and self contained.
I’ll start with the gold standard for recommendations: “Cowboy Bebop”
If they want something light-hearted and comedic, “Spy X Family” is a good one
“Vinland Saga” for something heavier and more serious
For fantasy fans there’s “Frieren” and “Delicious in Dungeon”, even if both are part 1 of a larger story
if they want fantasy aimed at someone younger, then “Little Witch Academia” is a good pick
If they want a combo of sports and romance, I thought “Yuri on Ice” was top tier.
With those out of the way, since you only said 3, I’ll pick these 3 to give a wide variety of what anime has to offer:
Cowboy Bebop, Delicious in Dungeon, Spy X Family
It really depends on what they are into.
Ideally it will be something short and self contained. I’ll start with the gold standard for recommendations: “Cowboy Bebop”
If they want something light-hearted and comedic, “Spy X Family” is a good one
“Vinland Saga” for something heavier and more serious
For fantasy fans there’s “Frieren” and “Delicious in Dungeon”, even if both are part 1 of a larger story
if they want fantasy aimed at someone younger, then “Little Witch Academia” is a good pick
If they want a combo of sports and romance, I thought “Yuri on Ice” was top tier.
With those out of the way, since you only said 3, I’ll pick these 3 to give a wide variety of what anime has to offer:
Cowboy Bebop, Delicious in Dungeon, Spy X Family
Couldn’t have said it better myself.
Little Witch Academia is what got me into anime, good pick.