As always, the answer is "it depends". Do you have significant Typescript / React knowledge in your platform team? Them consider
backstage.io (or the hosted version
roadie.io if you don't have the skills at that level).
Otherwise, what are the features most important to you? The commercial alternatives I know all have different focuses and strength, so I can't make a general recommendation. But at least a list I've evaluated:
•
Atlassian Compass
•
port.io
•
cortex.io
• (and obviously the ones mentioned above)
Hope this helps 🙂