While there are many massage therapists throughout the country, it's pretty unlikely to find those who would also administer an enema. Licensed therapists probably wouldn't risk legal troubles for practicing "medicine" without a license. Even licensed home care nurses are leery when it comes to giving an enema without a doctor's order.
This usually leaves the option of patronizing someone who isn't licensed for either procedure. If a "happy ending" is desired, I'm sure you understand the limited options.
The only other viable option is for enema lovers to cum out of hiding and enjoy the benefits with other like minded types. I've posted about "Enemassage" and believe a set of parameters can be established to facilitate the provision of these services. Some kind of a "Swap, trade, and barter" type of arrangement might be amenable.
Many of us allow other "professional" types to provide a variety of services and procedures. Granted, most are licensed and charge for the services. We don't seek these types with the hopes or expectation of getting laid, married, or some LTR aside from establishing a trusting arrangement that is mutually agreeable. If we aren't spending a fortune, we may not even expect the most professional massage, or even the most sexually charged enema ever.
One may just expect a discreet massage and an enema. If two consenting adults take things beyond that, so be it. I've enjoyed enemas in lieu of colonics at very "legitimate" clinics. There is nothing close to home, so an indulgence while travelling is relaxing and enjoyable. These are "platonic" and merely a good way to unwind. Not unlike a massage I might add.
Putting the two together is likely the greatest challenge we face in our quest for fulfillment!