@iowa52241 Might want to look into plate loadable "kettlebells" if you have weight plates or want them. I have quotes because the kinds of things I'm talking about are mainly useful for swings. Titan has one for like $50. There are some diy options using metal pipes.
You can go heavier than most kettlebells and in any increments you can put on the loading pin. The downsides aren't really an issue if all you want to do is swings. You may be limited to the diameter of plates but if you are worried about that it means you've gone pretty far weight wise.