which laptop to buy

Start here: Mac - Compare Models - Apple

Then get the system requirements for each of the critical apps you intend you use with this notebook, and then, compare them to the system specs for each Apple model to see which meets or exceeds them.

As Phil0124 has eluded to, without any details of your goals in using this notebook, it would be impossible for us to make any kind of recommendations.

Well no way for us to know either without any info whatsoever.

What are you planning on ding with it?

What if any applications of software do you need to run on it?

Do you need to run Microsoft Windows, or Windows based applications on it?

Will you be doing things like 4K video editing? raw image manipulation? Photoshop?

Give us some details of your planned workflow and requirements, and someone may be able to offer some suggestions.

Well, you'll have to go with a MacBook Air or MacBook Pro since MacBooks were discontinued over a year ago.