Noooooo. Trello is not a database, please do not use Trello to store data. I’ve advocated a lot against the use of Trello for databases: my most recent reply regarding it can be found here:
@IlyasTawawe GitHub isn’t a database either, it’s a code hosting platform. Please make sure you check out what a platform’s capabilities or intentions are first before considering them as potential options! You can pull code but please do not commit code and treat it like data!
I’m sure a quick search around the internet could find you something suitable to use, but don’t expect it to be an easy find. A lot of this kind of software requires some money put into it.
I would’ve suggested jsonstore io, however it’s been closed for unfortunate reasons.
If you can help it, try to use DataStores. Plugins can still access a game’s DataStores provided you own the game and are the one running the plugin.