You could get a used Marshall DSL 401 for around that price range.
+1. IME, very few all tube amps are usable at true practice volumes and those that are have so little projecting ability that they're not so good for anything else.If it was all tube, it wouldn't be much of a practice amp
Just like the title guys ,what would be the best all tube practice amp for around the price mentioned , mostly play Grunge...
Orange Tiny Terror is another option