33% variance:

Eetu   Average Name, Informal, Simple, Youthful
18 ratings

Hadyn   Average Name, Modern, Youthful, Informal
27 ratings

Olli   Above Average Name, Simple, Youthful, Informal
28 ratings

Willi   Average Name, Informal, Common, Comedic
14 ratings

Similar names · Opposite gender · Dissimilar names