Runpod.io for example, you can just rent a GPU per the hour, train your own model and you’re good to go. I mean as long as you don’t upload criminal stuff (CSAM, etc.) you can train what you want on there.
Otherwise, training your own models will become easier by the day for home hardware. Look at fast it went for Image AI to be able to train your own model. You can do that with 12GB or even 8GB afaik now. I don’t think it’ll take very long until you can just let your 8GB card chuck away at some training data.