Those all sound like solid entries! Fire Emblem is also a personal favorite of mine and I fully relate to having a friend group that isn't into the genre at all. I'll go ahead and list some more.
Most of them can be emulated on low or mid-range PCs, with decent enough results :
-EarthBound (3DS Mod FTW)
-Skies of Arcadia : Legends (GCN, Emulation)
-Shadow Hearts (PS2, Emulation)
-The Legend Of Dragoon (PS5/Emulation)
-Golden Sun Trilogy (GBA, DS)
-Radiant Historia (DS, 3DS has a good Remake)
-Final Fantasy IV (DS, Switch, PC)
-Eternal Sonata (PS3 for QoL improvements)
-Mario RPG / Mario & Luigi Series (GBA, DS, 3DS, Switch)
-Star Ocean : Till The End Of Time (PS2, PC, PS5)*
-Star Ocean : The Second Story R (PS4,PS5, PC, Switch)
-Chrono Trigger (SNES, DS, PC, Emulation)
-Lost Dimension (PS3, Vita, PC)
-I Am Setsuna (PC, Switch, PS4)
-Tales Of Arise (PS4, PS5, PC)
-Stella Glow (3DS, Emulation)
-Disgaea 4 Complete + (PS4, PC, Switch)
-Octopath Traveler / OTP II (PC, Switch, PS4)
*The game has an infamous plot twist right at the end that changes the player's perspective of the whole series, so tread carefully, and maybe save it for last.
Devil Survivor I can vouch for as being some of the most underrated SRPG on their systems, go with Overclocked and Record Breaker for them (both on 3DS) since they are just new and improved versions of the DS games with great voice acting and more plot.
Same goes for Trails, if you are a story guy then those games are perfect for you, and the universe is very well built and developed to boot.
There have been a bunch of other great mentions, but those are the games that come to mind whenever I think 'JRPG' and great music alike (Yoko Shimomura & Motoi Sakuraba, plus Yasunori Mitsuda for Chrono Trigger).
Also
@Mint,
@song and I will be the first to tell you that Yasunori Nishiki, the composer for Octopath Traveler, wites absolute
magma when it comes to OSTs.
View: https://youtu.be/f3F_xd5R_4I?si=YWacwa8rYIzD7KzD
View: https://youtu.be/QbsIXAIn5aE?si=mts9o1kP4pHRGEnp
Not to mention the series' combat system closely resembles Bravely Default's, having dedicated roles for the party to fill in and the Boost mechanic allowing you to power up attacks up to 4 times once stockpiled.