Free Japanese Name Generator
japanesenamegenerator.top
japanesenamegenerator.top
E.g.
前田 翼 (Maeda Tsubasa)
Not "great first son", but "wing(s)".
渡辺 蓮 (Watanabe Ren)
Not "hopeful as the morning sun" but "lotus plant"
"Great first son" might be 大一朗 (Daiichirō).
It seems that this English descriptions do correspond to the names but are not only separately randomized, but also gratuitously embellished.
For instance "wings of freedom" comes up, as well as "pure as a lotus flower". These are possibly intended to match the above two names, but those names don't say anything about freedom or purity, just "wings" and "lotus".