i’d consider the saucony tempus as an option. i’m loving them for long runs and recovery/brick runs. they are sort of a stabilty shoe but forget everything you know about stability shoes. they have a peba sole but with some structure from eva which gives the best of both worlds - light and responsive but still some control for when you get a bit sloppy in your stride. not genuine speed shoes but great for slow to moderate paces without feeling slow like most shoes in that space do.
i would note they are a bit more generous size than the endorphins - maybe a quarter size bigger so if you’re in between half sizes in the endorphin then drop down for the tempus. probably just the difference in target fit between race glove and trainer