D.N. Boswell over at Mythodoxy has done a yeomen’s job exploring the connections between Osiris and Jesus, especially in the resurrection narratoves. His source citation is superb, the topic is one that has little exposure, and it’s fascinating as can be. Check it out! Part 1 / Part 2
I explored parallels between Aristeas’ resurrection and Jesus in my smackdown of Lee Strobel’s Case for Christ here.