Welcome to the forum, Mark! The Genos2 is an amazing arranger keyboard. I have a Genos1 but decided to wait for the Geno3 for personal reasons. Here are a couple of examples of some high quality studio monitors. Not sure what price range you want to stay within, but these are considered in the mid-range price bracket.
These are the 8" flagship of the T series from ADAM
ADAM Audio T8V Active Nearfield Studio Monitor Features:
Vertical 2-way system with 1 × 8” polypropylene woofer and U-ART tweeter
U-ART accelerated-ribbon tweeter with precision HPS waveguide
Large rear-firing bass reflex port
Highly efficient 90W Class D bi-amplification
Linear frequency response of 36Hz–25kHz
Maximum peak sound pressure per pair at 1m ≥ 118dB
Analog XLR and RCA inputs
2-year warranty; optional extension to 3 years with product registration
Sold individually: $299.99 EACH : No 1/4” inputs, though.
The Yamaha HS8 studio monitor speakers are highly rated, as are the ADAM T8V speakers.
Yamaha HS8 Active Studio Monitors Feature:
High-performance drivers and mounting system
8" cone woofer, 1" dome tweeter
Impressive 38Hz to 30kHz frequency response
Large magnets in an Advanced Magnetic Circuit design
Built-in bi-amplification: 75-watt LF, 45-watt HF
Dedicated power amps are perfectly matched to the woofer and tweeter
Enclosure is designed to kill unwanted resonances that can influence sound
Room control and high-trim response controls give you optimum response in any room
$797.98 (pair)
They have both XLR & 1/4” Inputs.
Happy Shopping!

“Playing the keyboard is easy. Just hit the right notes at the right time.” Ludwig van Beethoven