I’m in a state of avelut of sorts, myself.
He was the one of the only Haredi gedolim whose psakim I find to be grounded in a very sensible approach to halakha; instead of sowing the seeds of enmity through his psakim, his psakim sought to uphold the principle of kocha d’ hetera adif. His psakim on conversion, agunot, gelatin, bishul be shabbat, and so many other issues are obviously at odds with what most Haredim believe, but there was probably no bigger baki than Rav Ovadia, zt”l. We’re all the poorer now, and I for one will be making an effort to learn Yalkut Yosef every day, bli neder.