Peter Gabriel and Susumu Hirasawa are artists who broad strokes occupy a similar space in my mind. They are both sonic auteurs who were in bands significant to their respective scenes, whose solo careers found them reborn as comparably relevant innovators in a completely different field than that from which they started. They are also acclaimed film composers whose soundtracks operate as natural extensions of their own solo careers.
They have an inclination for experimenting with new technologies ahead of the curve, as well as a deep love of a specific culture different from their own, of which the local musical stylings became an integral part of their music. Both artists have spent a sizeable portion of their career pushing for appreciation and social awareness of that culture, working with and propping up artists of that culture on multiple occasions.
Both Gabriel and Hirasawa have extremely recognizable vocal timbres and idiosyncrasies (which they refer to with semantically identical words derived from their own names), and write artful albums that blend all these cool aspects with massive pop appeal, resulting in music that is clearly of its time but also hard to boil down to only a few specific styles.
As for more surface-level similarities, in keeping with their affinity for new technologies, both were early adopters of computers and the internet and both come across as reserved and quiet individuals who take a lot of pride and care in the art they create, as well as having had (at one point in time) an above average awareness of socio-political issues. Also they're big cornballs and I like them a lot and they have dad vibes.
There are obviously significant differences between the two but you already knew that.