This thread needs a bump.
For those of us still using Soundfonts, .sf2 files, there are some nice free 64bit alternatives:
BassMidi Vsti, https://www.kvraudio.com/product/bassmidi-vsti-by-falcosoft A multitimbral sf2 player, simple to use
Juicysfplugin, https://github.com/Birch-san/juicysfplugin Not multitimbral .sf2 player, also simple to use
TX16Wx, https://www.tx16wx.com reads .sf2 and many more formats. Rather complex to work with
Plogue Sforzando, https://www.plogue.com/products/sforzando.html convert .sf2 to .sfz
Sobanth, https://www.kvraudio.com/product/sobanth-by-benjamin-rosseaux Had some crashes with this, but maybe just me