Bryston is reputed to be a good match with Maggies, and this 4B-SST2 has ample power to drive your speakers…
https://www.usaudiomart.com/details/649923203-bryston-4b-sst2/
Matching the Bryston with this excellent LTA ZOTL tube preamp I’d think would produce glorious sound along with just a bit of that tube magic…
https://www.audiogon.com/listings/lisb062c-linear-tube-audio-microzotl-preamplifier-tube
Or you could go with a Bryston BP26 preamp for synergy with the amp…
Hope this helps, and best of luck.