Bottom line, China needs to decide which countries it wants to ally with and make sure that its policies maintain and support those alliances.
As far as soft power, it's all about having something universally appealing. For example as Biscuits said, "reliability", but something more inspiring than just that. Contrary to myth you don't need to be super powerful to have soft power. Venezuela had some soft power back when Hugo Chavez was in power. New Zealand gets soft power by handling the coronavirus crisis well. Even little Cuba gets Che Guevara shirts and praise from Bernie Sanders. It's not about size. That is the magic of soft power, it's a shortcut to power, it doesn't require a huge cost, it doesn't require a lot of effort in propaganda, just having something that can appeal to non-Chinese people universally, and every country that wants to raise its status needs at least a little of it.
As far as soft power, it's all about having something universally appealing. For example as Biscuits said, "reliability", but something more inspiring than just that. Contrary to myth you don't need to be super powerful to have soft power. Venezuela had some soft power back when Hugo Chavez was in power. New Zealand gets soft power by handling the coronavirus crisis well. Even little Cuba gets Che Guevara shirts and praise from Bernie Sanders. It's not about size. That is the magic of soft power, it's a shortcut to power, it doesn't require a huge cost, it doesn't require a lot of effort in propaganda, just having something that can appeal to non-Chinese people universally, and every country that wants to raise its status needs at least a little of it.