Suggestions for brace for elbow when working out. status post elbow dislocation times thee years?

Depends: Most elbows are stable once the injury heals. If you are looking for an extra measure of support or comfort while working out, i would start with a simple slip-on neoprene elbow sleeve. If your elbow feels slightly unstable, you should see an orthopedic, preferably one who is an upper extremity expert. In rare instances, a subtle case of instability can cause problems with weightbearing activities.