Best WAF providers for a Django app

My team is using Sqreen as a Web Application Firewall (WAF) for our Django apps.

However, Datadog bought Sqreen last year and is terminating our contract because they want us to move to their in-house solution: Datadog Application Security Monitoring (ASM)

Besides Datadog ASM, I’ve started looking into Cloudflare WAF because already use them for DNS management.

What other alternatives do people recommend?

We’re using AWS WAF on ours but it is too expensive. I am wondering if there are alternatives too.