Ideally you want to find out what's causing the high SHBG and then treat the casue and not try to just treat the symptom by taking stuff which is known to lower SHBG. If you've finished a cycle in the last few months, then you might just need to give it some time to come down and continue to supplement Mg or better some ZMA along with spinach, avo, maybe some nuts.
Did you test your E2, cortisol, thyroid hormones? All can have a big effect on SHBG and most things that affect these will affect SHBG. Are you getting enough sleep? Lack of sleep and stress will elevate cortisol and SHBG. Are you eating a very low carb diet? That can raise SHBG. Low carb is fine but if you're cutting and too low on calories that will also screw your hormones.
Age, weight, BF%?
