Hosting hardware requirements are 2-3x the CPU and RAM requirements with ARK SA vs ARK SE. The alternative is to purchase your own enterprise grade hardware and self host.
That is what I did for my cluster that I have been hosting since August 2022. My new privately owned server hardware cost $29,000 but blows away the performance of Nitrado rented servers with 96 physical cores / 192 logical cores running at 4.1GHZ with 1,536GB of RAM. Server hardware is expensive and this same hardware at list price would be $80,000 per DELL's own website.