Paw is the best tool UI wise.

Postman/Bruno/insomnia all suffer from the 'curse' of web design making it's way into professional tools leading to lower information density and higher 'white space'.

I feel so strongly on the matter is why I started a project that is unfortunately in comatose for the past year : https://nokori.surge.sh/

The design isn't there yet, but I'm aiming for a professional looking information dense UI.