Besides bars and hotels, what other places are there for singers?

Generally speaking, you need to be introduced by an agent or someone in the circle if you want to stay. Generally, you rarely accept a self-recommended singer, even if you sing well. I suggest that you find a professional recording studio to record a few songs, even samples, and then let the studio introduce you to friends in the circle, or go to the record company yourself, carve the samples into CDs, mail them, or call in person. You don't have to be a signed singer, and you can ask them to introduce you to the venue and cooperate with them through the record company.