If you know how to use ChatGPT like a pro (which you become by practicing), the need for an alternative will not arise. Saying it based on experience.
For more than a year, I tried many (50+ I think), tested many based on developer requests - esp in field of SEO, content writing, video editing and graphic designing, etc… but what works out the best is your knowledge in the line of work you are in + ChatGPT.
I think the best people in business know this well - this is why they keep coming back for my 100% organic services in content, SEO and web design, backlinks, etc.