which router is best for high speed network? 
High Speed like “faster than dial-up”? Or High-Speed like 10Gbps?
and or do you men, router or switch? 
The best router today. have to be a <1 million$ juniper, cisco etc router.
The best overall router, performance, speed, and cost, should be a mikrotik device. The nex sfp+ router, maybe? In your setup, I have no clue. This depends on your what the purpose of the router is.
Thank you for sharing.i don’t know it.are you know me about mikrotik device.whats its price,and where it available?
routerboard is a very good site i have visit this site.its are very exclusive.thanks for sharing.