If you like explorations of the deep impacts of parallel universes which have bridges that lets you transport bits (but not matter), you might enjoy https://brainchip.thecomicseries.com/

I like some of Yudkowsky's shorter fiction but I could never get into HPMOR. The writing style just comes across as too smarmy. I know it's intentional but I still can't get past it (I had trouble with Thomas Covenant) as well.