What VPS to get for wordpress website with huge traffic?

Before you buy a dedicated server, make sure that your have a caching plugin like WP-Super Cache setup and ditch Apache for Nginx (Apache is a resource hog)

I have a wordpress website that serves 800,000 page views a month using a $10/mo Linode server. It hardly uses any resources because nginx serves all cached files. It would run the same on a $5/mo Digital Ocean VPS as well. I have wordpress comments disabled, so there is no need to regenerate the cache file often.

If you have any questions on the specific setup (nginx conf, wordpress plugins etc), feel free to PM me for more details.

Definitely a dedicated server I would say - it doesnt matter how infrequent the spokes are - if they only occur once a week it doesnt mean a VPS will be ok because you need to have enough resources for the highest spikes.

If your client cant afford dedicated server and the spikes are infrequent then see if he is confortable with the site being down every now and again when its overloaded.

123systems have cheapest plan

I am using Amazon web services for some high traffic websites and so far never faced any issues. Servers are very stable and speed is as good as they come.

Powerup hosting is good for big traffic site. personally used.

Digital ocean have pretty decent services. The 20$ a month plan can handle up to 10,000 page-views in a day.