Synth riders ever on sale? And recommendations for other Rhythm games! (Quest 2)

Hi guys!
Apologies if this has been asked before, but as a new user I'm looking to expand my quest 2 library. I'm a huge fan of rhythm games, and the first game I bought is Beat Saber (surprising I know).
The next logical step is Synth Riders, but wondering if it goes on sale often, or if is included in any bundles? (and what sort of sale price should I be looking for?)
Also, any other recommendations for fun fitness/rhythm/dance games?
And one final question for the Rhythm experts, what grips do you use for your controllers? Atm I'm dealing with sweating hands on the harder levels, which make things much more difficult.... but there are so many options, as well as mixed reviews and I am completely overwhelmed!
I appreciate any advice :)

Thank you!