Unfortunately, there's no simple answer to your question. Probably a majority of guys advertising on massagem4m and masseurfinder, and especially on rentmasseur, offer an HE, but some don't under any circumstances, some only for an upcharge, and a few are inconsistent, in the YMMV department and whether it happens seems to depend on his reaction to you. To be sure your expectations are met, first check comments on the guy here, and then if there is any doubt left it is best to ask up front, but while many prefer that so things are clear, a few masseurs are uncomfortable with discussing it by email or even text, so you might get a "no" or he might decline to discuss it even tho it's a standard part of his repertoire.