Magnesium but the only I’ve found to be effective is called MegaMag, I get it on Amazon. Can’t live without it.

Heating pad every morning.

This neck massager which I use after my heating pad morning and night: FlexWorks Shiatsu Neck & Back... https://www.amazon.com/dp/B09LBB3NBN?ref=ppx_pop_mob_ap_share

Eliminating gluten and dairy, I’m always way tighter and in more pain after eating them.

Eliminating stress.

Massage if you can afford it, but a medical massage not a normal one.

Chiropractic care.