Unfortunately, no, there is no 3rd party head for Ruth2 v4 whatsoever. No BoM head at all with the same neck cross-section as Ruth2 v4, for that matter.
All you can do is spend some time (a lot of time, if necessary) with the shape and find a good skin. The difficulty in the latter caused me to put some work into Eloh Eliot's old Starlight skins because I found nothing decent at all for Juno.
The former always starts with reducing the distance between the mouth and the nose. Next step would be to raise the chin. This also gives the head more realistic proportions because the eyes are no longer in the upper half. Let's just say you may have to not let a single value on the head/in the face untouched.
In my opinion, one general problem that both Ruth2 v4 and Roth2 v2 have is that all officially supplied shapes suck big time. Roth2 v2 is actually worse than Ruth2 v4 which is an absolute deal-breaker in a world where you can take a copybotted body and a copybotted head and a copybotted shape, and you've got an instant stereotypical supermodel. I've started making a decent, realistic, believable, at least halfway good-looking reference/base shape in case I'll ever make basic starter avatars with Ruth2 v4. It took me several hours and the help of a prim construction for body proportions to even get close to that.
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