the one that will most radically change your "typing experience" are the blues. topre are pretty similar to cherry, they are both very smooth but topre has a bump and reds dont. blues are loud & clicky, something very different from both reds and topre
Thank you. Browns/Topres are majorly different.
Get the Topre next. You already have MX reds, which is probably the best MX switch, IMO.
If you want something really different from Cherry, get the ergonomically variable weighted silent Topre switches.
If reds are the best switch, and they have zero tactility, you would suggest that he gets a marginally tactile rubber dome switch? 
)
No. I suggested that OP get a Topre switch keyboard.
First: Topre is not a rubber dome switch. Topre is an electrostatic capacitance switch, which is superior technology to rubber dome switch, which is also a "mechanical" switch, in that the rubber dome is the "mechanism" by which the electrical circuit is closed. An electrostatic capacitive switch does not use a physical metal part to make the electrical connection, instead the electrical connection is made by capacitance. Topre capacitive switches do not physically complete an electric circuit like most other keyboard technologies. Instead, electric current constantly flows through all parts of the key matrix. Each key is spring-loaded and has a tiny plate attached to the bottom of it. When you press a key, you do the work of moving the tiny top plate closer to the larger plate below it. As the gap between the two plates decreases, the capacitance increases, and the amount of current flowing through the matrix changes. The micro-processor in the keyboard detects the change in voltage and interprets it as a key press for that location.
Because there is no physical contact, capacitive switch keyboards have a longer life than any other mechanical keyboard. Also, capacitive switch keyboards do not have problems with signal bounce since the two surfaces never come into physical contact. Signal bounce is a real problem if you want an electronic circuit with fast response time. Contact bounce can produce very noticeable and undesired effects.
Second: MX Reds are the best Cherry switches for me, since I do either heavy gaming or heavy typing. The linear 45g actuation force of the MX reds is good for both heavy gaming and heavy typing since it reduces finger fatigue. So, since he is like me and likes reds, he probably will not like browns, blues or blacks any better, but he probably will like Topre. Topre will have more tactility that MX Reds, it is true, but the Topre keypress is immensely more enjoyable than the keypress of any MX switch. Furthermore, one cannot directly compare the tactility of Topre to that of MX. Both have a tactile bump, but Topre feels completely different from the MX tactile bump. Also, it occurs at the top of the keystroke, not in the middle. And finally the 30g switches found in an ergo variable weighted Topre keyboard are so light that the tactile bump is almost unnoticeable, making them feel much like MX reds, but lighter reds, if that makes sense. So that, in toto, is the reason for my recommendation. I did not write it out in full, but since you asked for clarification, I am giving it to you now.
