Getting beyond the experimental stage and standing up a reliable service for real users is not a small lift. Guys from nostr.build have been the bedrock of Nostr - hosting most of the network’s media content. Consider supporting them by getting a paid plan.

As of Primal 2.2, you can set any Blossom service as your primary media hosting provider. In addition, you can set any number of Blossom mirrors to make your media content more resilient. I use Primal's Blossom service as my primary, and blossom.band as my mirror.