There are some companies that develop various kinds of animation tools. This is pretty niche, but this probably also means that there's also not a lot of people

There are some companies that develop various kinds of animation tools. This is pretty niche, but this probably also means that there's also not a lot of people competing for jobs. If you can, get a job that is not on the front lines in VFX or game development. That way, you get some insulation from the crunch and pressure present in those studios.