What would you suggest as an alternative to WP Engine?

I am looking to move a particular site away from WP Engine after mounting problems with security and reliability. The site is a content-based site for a $100M entity, and it receives about 30,000 visitors per month. Budget is $500 / mo., though that should be an absolutely unnecessary amount to spend. The WP Engine sites are in a shared environment, which caused one of two recent problems, and all sites actually run SLOWER than the same thing installed on a dedicated virtual instance / droplet in Cloudways, which I refuse to use for something for which I want quality support, has an actual budget,…

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