Not one of the more easy kinds unless climate etc. are very suitable. First question is why, specifically pears died and how this might affect replacement plantings. Second is are almond trees hardy in Utah. And also will you be able to keep up with the crop, including protecting it from rodents and other humans, including those that might object to a mess in a public area - in Seattle there have been regulations in the past prohibiting the planting of orchard fruits on public streets. Although, of course, people do it anyway, probably most of the time not even being aware that street tree plantings are supposed to be run by the city arborist beforehand.