Hello TeeA.
Broken toes are very difficult to work around and there’s not much that can be done for them physiologically. However, we can support the body’s own healing mechanisms through meditation (light and color), pranayama (breath calming to the nervous system), rest, proper nutrition, and a physical practice comprised of restorative poses.
Since you are asking only about the last of these, I’ll respond directly to that.
Standing poses and inversion likely are to be avoided. The former due to the demand placed on the toes in the pose and the later due to the demand in entering and exiting the posture. The prone and kneeling postures might be painful as well but try a folded blanket under the tops of the feet and see.
If you are careful you can do Sarvangasana with feet on the wall, knees bent. And I am presuming that pose would not be done flat on the floor but on the appropriate props to preserve the curve of the neck and ONLY if it is already part of your practice and/or has been taught to you by a well trained teacher.
If you have a wall rope system or know how to modify when you do not, then you can do Adho Mukha Svanasana in the belt (traction). Other postures that are “ok” may be tadasana, hastasana, parvatasana, baddha konasana, supta baddha konasana, upavistha konasana, Supta Padangusthasana with the strap around the heel, Parsva and Parivrrta in the same manner, parivrtta pavanamuktasanaa, garudasana in sukhasana, gomukhasana in sukhasana, ardha badha padmasana, marichyasana III, dandasana, purvottanasana, janu sirsasana just to name the one’s that come to mind first.
I’d advise a sabbatical for your vinyasa pace perhaps returning to that after the toe fracture is healed, if it so suits you at that time.
