Serious answer: kailh/novelkeys box pale blues are amazing, here's the force curve:
https://plot.ly/~haata/409/novelkeys-box-pale-blue/#/
The moment you feel the click is exactly when they actuate, unlike cherry mx browns or blues which are comparatively terrible.
Their springs are *just* heavy enough to help your fingers on the upstroke, but light enough to not burn your stamina immediately. (Their heaviness is between MX reds and MX blacks. I think this weight pretty much nails it, biomechanically speaking, although I could see someone being more comfortable with a slightly lighter switch if you have a light touch.)
I've tried cherry mx clear, brown, speed silver, IBM buckling spring, rubberdome, scissor switches, I have a keyboard in the other room with vintage alps SKCM browns, and right now, I wouldn't want to use anything other than box pale blues. As far as tactile switches go, box pale blues are great.
Warning: Box pale blues will destroy your keycaps. You need a set of caps *just* for these, because if you start swapping caps on these, you will get stress fractures on the cap stems. Thick PBT caps are probably most resistant to this.
kbparadise sells prebuilt boards (olivette, vintage) with box pale blues as an option, but they use costar stabilizers which really suck, so it will be a better typing experience if you build your own.
Input club's hall effect/beamspring switches are also very interesting, but they don't seem to be available for purchase yet.
The force curve of vintage alps SKCM blues also looks great, but they've been out of production for literal decades and using them to play Osu would rapidly destroy the switches. The thought of doing this to SKCM blues just for Osu feels dirty, in addition to being fucking expensive, so, no.
(The nintendo answer was better)