Cherry MX Blue switches are similar in feel to the Model M style buckling spring switches but have I think a slightly shorter travel and require a little less force. Cherry MX Brown switches have a lighter touch and less of a click when the switch activates.

Probably you need to try them out for a while to decide which keys work best for you.

I used a Unicomp keyboard happily for a few years but am most comfortable with an MX Blue keyboard now.