For personal work, I am investigating options for commercial solvers. Prefer a cloud solution so I don't need to invest in higher-compute machines. I have received pricing for Gurobi Instant Cloud, but would like recommendations from others.
You can run OptaPlanner (open source) in the cloud, on OpenShift/AWS/Azure etc.
All of the quickstarts contain a docker file. All quickstarts can run in with the JDK docker image, but all the Quarkus quickstarts also support native compilation into a normal linux executable, which is ideal for serverless setups.