Akito

Commonly associated with the Japanese beverage company Asahi, which produces a beer by the same name.

Asahi

A short and straightforward name for a springtime child.

Haru

Japanese writer Haruki Murakami, well known in the U. S. , might inspire some namesakes. 

Haruki

Common Japanese choice for boys born in the Spring.

Haruto

Hayato

A very popular Japanese boys' name whose characters refer to the constellation Ursa Major.  Short form Hiro might work better in the West, as may another popular Japanese boys' name, Ren.

Hiroto

In Welsh, a diminutive of Iorwerth. As a Japanese name, Iori stands alone.

Iori

Itsuki

Kai is an internationally flexible name with many possible origins and meanings, growing in popularity in the US and a diverse range of European countries.
 
In the US, the name Kai is most commonly referred to as being of Hawaiian derivation, meaning "sea." In Europe, Kai is largely considered to have Frisian origin as a diminutive of the name Kaimbe, meaning "warrior", or as a short form of Gerard "brave spear". 
 
Kai is also found as an independent name in African, Chinese, Turkish and Native American cultures. Kai is a strong, evocative multi-cultural name that packs a lot of power in its single syllable. 
 
Famous as the name of the boy enchanted by the fairy-tale Snow Queen, Kai was chosen for her son by actress Jennifer Connelly and as a middle name for son Samuel by Naomi Watts and Liev Schreiber. 
 
Kai is popular with Berries as both a first and middle name choice. Perhaps because of its international familiarity, Kai is popular in video games. Its most prominent namesake is Danish-born jazz trombonist Kai Winding.
 
Kai ranks in the US Top 1000 for girls, but is used more than 90 percent of the time for boys. Donald Trump, Jr. has a daughter named Kai Madison and Gigi Hadid and Zayn Malik named their daughter Khai in 2020.

A Japanese name that would work well on a boy or girl — it is reminiscent of popular unisex names Kai or Kyrie. Kairi is the name of the main female character in the popular role-playing video game series, Kingdom Hearts.

Kairi

A Japanese name with a great meaning, a cool Kai sound, and lots of potential to become an international export.

Kaito

Kento

Kouki is an uncommon choice in Japan today, but it's been used for several anime characters.

Kouki

Minato

A very unusual biblical name, Rei was one of David's most loyal supporters.

A very popular name for boys, also used for girls, in Japan, most familiar in the West as half of cartoon's "Ren and Stimpy," and as the hero in both the original and updated versions of "Footloose." 

Riku

This charming mini name began life as a nickname for Rodrigo but has since taken on a life of its own, ranking as an independent name in Portugal, it’s country of origin. If you’re looking to honor a Rodrigo, Roger, or Roderick in your life, Rui is an appealing international option. Ruy is a spelling variation that is more commonly seen in Spain.
 
Rui had a brief appearance on the charts in France from 1967-1981.

A smart and simple unisex Japanese name meaning "sky". It actually has a second nature meaning in Finnish, albeit a slightly less appealing one: "gravel".

Sora

Taiga has two origins. As a word name derived from Turkic languages via Russian, it refers to the snow forest of the Arctic regions, making it an evocative nature name.
It is also a unisex Japanese name. Depending on the spelling, one meaning can be "large river".
Either way, it's worth noting that it sounds very similar to Tiger.

Taiga

ayato

eito

haruma

hinata

ibuki

kanata

kanato

kouta

rikuto

ritsu

ritsuki

rousei

ryou

ryouma

saku

souma

sousuke

souta

touma

yuito

yuuki

yuuma

yuusei

seaslug's list "top japanese boy names - japan 2020" of 48 great name ideas: Akito - yuusei!

top japanese boy names - japan 2020

currently popular names in japan, according to tamahiyo. 
only the readings/romaji versions as japanese text tends to break my lists