Some of the shorter non locational ones are if you are willing to delete the exit code and replace it w/ the exit code for grab ace, note this wont work for codes like change weather
exit code for grab ace
Box  2: _ _ _ _ _ _ … _	[      … ]
Box  3: _ _ _ _ _ … _ _	[     …  ]
Box  4: _ _ _ _ … _ _ _	[    …   ]
Box  5: _ _ _ … _ _ _ _	[   …    ]
Box  6: _ _ _ _ _ _ … _	[      … ]
Box  7: _ _ _ _ _ … _ _	[     …  ]
Box  8: _ _ _ _ … _ _ _	[    …   ]
Box  9: _ _ _ … _ _ _ _	[   …    ]
Box 10: _ _ _ _ _ … o a	[     …oa]
Box 11: … o _ _ _ _ _ _	[…o      ]
replace the boxes that would be filler w/ the corresponding box here or
  Box 2-9:  (E       ) [ends with seven spaces]
  Box 10: (     …oa) [starts with five spaces; one …]
  Box 11: (…o      ) [one …; ends with six spaces]
with the boxes 2-9 being the boxes that arnt filler or the exit code here
also I wouldnt recomend testing this without an emulator or being extra careful
also the exact filler code may vary slightly from language but I know this works for leafgreen_1.0 as thats what ive tested w/ my physical cartridge or codes w/o a language in their description
oh and if you check the grab ace codes I put one ive tested myself for english leafgreen 1.0 in the comments