Dear Safari Friends - if you rather choose a more exclusive accommodation, we also recommend the "ENTUMOTO SAFARI CAMP" Maasai Mara. We have experienced this camp ourselves and are happy to recommend it. Read on their homepage the many great possibilities.  https://www.entumoto.com

Very exclusive and also experienced by ourselves is the "Mara Bushtops Luxury Camp" Maasai Mara.  

Luxury Masai Mara Safari Camp & Spa | Bushtops (bushtopscamps.com)

Very good are also the various Governors' Camp. Direct booking, prices, information: www.governorscamp.com.

The Mara Bush Camp/Little Mara Bush Camp are also great. Reservations through Sunworld Safaris Ltd.

Otherwise there are countless providers for a safari adventure.