That’s such a hard question to answer because even mid range places will have special fish that can blow out your budget. Also depends on how much you eat -if you get more rolls and less nigiri you will fill up faster.
That said my favorite QPR / mid range sushi are Moto Azabu in Marina del Rey. Mako Sushi in Weller court Little Tokyo. Nagao in Brentwood (good neighborhood spot more casual)