This is the holy grail of free SoundFont packs. Ultimate SoundFont Pack is a giant arsenal of SoundFont instruments useful for all producers. With a pack this heavy, they will cover pretty much any flavor of music production from trap to jazz and everything in between.
Expect to find a ton of mandolins, bass, guitars, sitars, harps, pianos, organs, trumpets, trombones, saxophones, gongs, flutes, violins, drums, percussions, bells, choirs and so much more. I highly recommend these free SoundFonts to producers who are looking to produce and perform their own musical layers.