DHEA is still available, but is not an effective anabolic. There are also 3-hydroxyandrostane-17-one and 3-hydroxyandrestene-17-one products available, but they aren't effective either. Other than 11-ketoandrostenedione, these are the only compounds which are legal and which are actually prohormones. Only the latter has any value, but it doesn't compare to pharmaceutical anabolic steroids.
11-ketotestosterone has some value and is legal but I don't know if anyone is still selling it. It is however a hormone not a prohormone.
The various other compounds sold as "prohormones" are not prohormones but are synthetics that in fact aren't legal, but are not specifically named as being illegal either. None of them are good compounds.
The good ones were being done already at the time of the 2003 Anabolic Steroid Control Act and so were banned.