Are you looking for (temporal) direction, but reductivists account that appeal to a thermodynamic arrow just don't seem that compelling? Did you already purchase a package of primitive grounding relations? If so, you can upgrade your grounding relations for just $29.99 to include primtive diachronic grounding relations, which can then be easily used to provide you with direction.
Primitive Diachronic Grounding Relations
Eternalists believe that there is no ontological difference between the past, present and future. Thus, a challenge arises: in virtue of what does time have a direction? Some eternalists, argue that the direction of time is primitive. A natural response to positing primitive directionality is the suspicion that said posit is too mysterious to do any explanatory work. You can now purchase your own diachronic grounding relations and give time some direction.
For more information on how to use primitive diachronic grounding relations, please consult
https://philpapers.org/rec/KAJPDA