The new widows terminal app supports ssh profiles as "commandline" profiles, it store the config in a json file

here a snippet example:
{

"guid": "{5385f66f-1046-4404-96a4-c49d824407a5}",

"name": "Termius Example",

"icon": "C:\\SomePath\\SomeFile.png",

"commandline": "ssh termius@example -i C:\\PathTo\\ssh_private_key"

}