Self-hosting an app like this would allow you to bypass API rate limits altogether, if you're open to it. All the above products can be self-hosted — and you might want to look at [NocoDB] and [Mathesar] if you're considering self-hosting.
There are some other proprietary Airtable competitors like [Retable], [Retool], [Rows], [Lists], [SeaTable], and [Tables] that might be worth looking at too.
(Disclosure: I'm an engineer on the Mathesar core team.)
[Baserow]: https://baserow.io
[APITable]: https://apitable.com
[Grist]: https://getgrist.com
[Rowy]: https://www.rowy.io
[NocoDB]: https://nocodb.com
[Mathesar]: https://mathesar.org
[Retable]: https://www.retable.io
[Retool]: https://retool.com
[Rows]: https://rows.com
[Lists]: https://www.microsoft.com/en-us/microsoft-365/microsoft-list...
[SeaTable]: https://seatable.io
[Tables]: https://tables.area120.google.com/