I get about 15k pageviews a day, and I have been on Applied Innovations, Cloudways+Digital Ocean and most recently IWFHosting, and they all suck. If it's not slow load times its 502 Gateway errors.
Really? Even a $5 DO droplet should easily handle that traffic. Otherwise, you're doing something wrong.
Just use managed hosting like W130SN said if you don't know what you're doing.