Hosting options
There are a few hosting options:
Elastic/Opensearch on Bonsai or another hosted service
Offerings like Bonsai will manage your ES cluster for you
Elastic Cloud
This is ES's native offering and lets ES manage your deployment for you.
Elastic serverless
ES also have a serverless option. This offering autoscales and is stateless and is optimised for realtime applications.
It eliminates the need for node and shard management, capacity planning etc by decoupling compute from storagfe and indexing from search.
Self hosting
You can also self host ES on your own machines. You can download ES here.
It will download two archives, one for ES and one for Kibana in separate directories.
It ships with dependencies like Java(ES) and Node.js (Kibana).