Useful Blockstrings:
Doing Nothing:
1
b1 (OH starter, doesn't link into SB)
f1
2
b2
f2
11
111
1112
114
b12+4
f13
21
213
b21
b214
f21
f213
f214
b2d4u3
f4d1
f42
f43
Linking Something:
All that ~Smoke Bomb (SB), EXSmoke Bomb, EXTrident, Fade Torwards, or Fade Away
Starters:
111 (fastest)
b1 (doesn't link into SB)
f13 (furthest)
21
b21 (doesn't link into SB)
f21
b3 (low starter)
f4
f4d1 (links into Trident only)
Enders:
21/4~Fade Towards
b12+4 (close, switches sides)
f43~Tele (close, same side)
EDIT f43~Air Throw (far, same side)
Midscreen Meterless:
Starter~SB, NJP, 4~Trident, ji1, Ender
Starter~Trident, ji1, 4~SB, NJP, Ender
NJP, 4~Trident, ji1, 4~SB, Ender
AA4, f13~Trident, ji1, 4~SB, Ender
1 Bar Midscreen:
Starter~EXTele, NJP, 4~Trident, ji1, 4~SB, Ender (b12+4, jk~Tele, or jk~Air Throw)
Starter~EXTrident (safe), ...
Corner Meterless:
Starter~SB, NJP, 4, 114~Trident, ji1, f43~Air Throw
Starter~Trident, NJP, 4, 4~SB, f43~Air Throw
NJP, 4, 114~Trident, ji1, 4~SB, b12+4/jk~Air Throw
AA4, f13~Trident, NJP, 4~SB, f43~Air Throw
1 Bar Corner:
Starter~EXTele, NJP, 4, 114~Trident, ji1, 4~SB, b12+4/jk~Air Throw
Starter~EXTrident (safe), ...
EDIT: Not perfect, but a good starting point for people wanting to learn Smoke.
More corner damage probably comes from 114~Trident in the corner instead of 4~Trident.
Same for f43~Air Throw instead of f43~Tele.