A tank mate for my blue cobalt dwarf gourami

[Pwojo]

I have a blue cobalt dwarf gourami. I suspect it’s male. Picture attached. He is pretty aggressive and territorial so I only have three Cory catfish and two snails. I want to get my gourami a female companion though. There a type of gourami people would recommend? It’s a ten gallon tank

 

[sharkweek178]

There isn't enough space in your tank. He would attack another gourami. If your tank was a little bigger, you might be able to add a female dwarf gourami with sufficient shelter and hiding spaces for her. But not in a 10.