my vote for topbits
Short, easy to remember, fits best.
topbits.com, is clear winner.
It's got to be topbits. In the rest, it is not easy to parse the words: e.g., is it Tech Speaking or is it Techs Peaking?
techspeaking.com is also good man.... two simple words!
Get both. And redirect one to another.topbits.com