where is the best place to install tachometer???

Hi everyone, Ihave 2001 k11 micra and I want to install tachometer but i don't khow where is the best place to source one from?
Any suggestion? Thanks for support!
Got mine off eBay but it's pretty slow and dim-witted, I'd say avoid cheap ones and buy a brand name one if you're able to, Autogage, Bosch etc.
There are plenty of sites that sell them in all sizes. There are some good Autogage ones on Amazon.
hola, podrias decirme (si es con fotos seria ideal ) de donde tomar la señal para el tacómetro, gracias.(y)