I've lived with Tannoys now for around 29 of my 40+ years of being involved in audio. My first pair of Tannoys were 12" MG's in home made (not very well made, at that), 3/4" plywood cabinets. My first amp was a pretty well-made 50 Wpc Kenwood integrated amp. I remember one day I was about a 1/4 mile away from my house, cutting wood. When I turned off my saw, I heard my Buddy Guy LP playing as clear as day (my roommate was playing it).
Since then, I have tried quite a few different amps. 60 Wpc Parasound, Solid State 300 Wpc Aragon, 35 Wpc VAC, 250 Wpc Plinius, Now using a 500 Wpc Class D Audio (two modules bridged to mono with upgraded power supplies) that came in a kit. In a very different amp topography, a 9 Wpc SET 300B amp that produces a very sweet sound, even in my large room.
So, Tannoy MG's can work very well with many different amps. You did not mention the size of your room, that would have an effect on what amp is right for your situation. My 12" HPD's seem to be bullet proof, at times they scare the bejesus out of me with their dynamic response on transients. I use the Class D amp about 75% of the time, and it overall is the best amp I've encountered for the HPD's. The SET amp I reserve mostly for listening to vinyl, it makes some special sounding music, too.
I know this seems to widen your choices a great deal, but it's a good thing, in that the MG's will mate well with many different amp choices. The amps that seem to stand out to me are the Aragon, Plinius, the Class D, and the SET300B.
I wish you success in finding what you need, but the odds are, you'll find what works best for you.
Regards,
Dan