Did you do any looking yourself? Did you try searching on here? This has been covered many times for both Skulltoys suits and SB suits.
Basically only the Original 70's Henshin Cyborg or the villain King Waldar bodies or the more recent reproductions. These are made by Takara. Neo-Henshin and Henshin 99 bodies will not work - at least on the SB suits.
As for Skulltoys, they seem to be also fitting the bodies discussed here:
http://www.skullbrain.org/bb/viewtopic.php?t=1700
Prices for vintage Henshins are up to $600 in the box while the Reproduction Waldars are available at Super 7 for $125 I think. Hard to get the reproductions now too.
