This is for 1 table 9 player $5-$10 SNG for pokerstars?
(I am newish to SNG)
This is just a draft, but please critize what you think is wrong below:

UTG = Under the gun aka first to act
EP = Early positon (UTG,UTG+1)
MP = Middle position (MP1,MP2)
LP= Late position (LP1,CO)
CO = Cut off
Button = Dealer
Blinds = The big and small blind
(s=suited, otherwise, off suit | x=any card )

Category
A - AA, KK
B - AKs,QQ
C - AK,JJ,AQs
D - AQ,AJs,TT,KQs
E - AJ,99,KQ,ATs
F - KJs, KTs, QJs, QTs, A9s
G - Same as F but not suited
H - 88,77,66
I - 55,44,33,22,AXs
J - TJs,T9s,89s,78s,67s,56s,T9s,T8s,97s,86s,75s
K - KXs, QXs

Stage 1 - Blinds 10/20 15/30 25/50 [Tight/Passive]

As mentioned many times, doubling up now will not win you the game. Save the coin flips till later
Your aim is to just survive until the blinds are worth stealing
Let them take out each other
Dont play aggressive unless holding the nuts
Understand the image you give them early so you may be more sucessful stealing later
Alot of the time you will be folding the winning hand, no need to worry
Take notes of players, tight/aggressive/etc...


EARLY/MIDDLE

-Fold any all ins unless with a Category A hand ONLY
-Raise 10BB with A, and re-re-raise all in if raised. All in on flop with AA reguardless and KK if a K doesnt hit.
-Limp in with B up to 5BB
-Limp in with C up to 3BB
-Fold all other hands

LATE

-Raise 5BB with A/B and re-raise all in if raised
-Raise 5BB with C/D and call if re-raised

BLINDS

[QUESTION - Should you complete the SB with any 2 cards?]
Limp in when sb in a unraised pot with any category A to K, otherwise, fold
In a raised pot more than 5bb, fold B/C, raise/reraise with A
Unraised pot - Raise in 5BB with A/B/C


Stage 2 Blinds 50/100 [Tight/Aggressive]

By now, you usually are medium short stacked with approx 1200-1600 depending on cards. If you were lucky enough to double up earlier, you can play slightly more loose. The table should be 6-8 handed. Occasionally it would still be full with a short stacked.

EARLY

(I will finish this some other time, just want some feedback)

Pretty good basic strategy

You will get the $$ if you play like this at the low buy inn levels.

Middle and late stage I play a little differently

These stages are very read dependable so adjust to your reads.
I will call all ins with QQ and AKs if player has half my stack or is playing weak.

I would raise less then 10BB on AA and KK. You don't want to scream I got them guys.
You wanna make money with them especially at this stage.( so 3 to 4 BB )

Also limping is not a good idea at this stage ,reraise and how much this is also read dependable.

For late stage it depends on your stack and all, but calling is hardly ever good if you got these good hands it is an all-in in many circumstances.

Get back to you later gotta go.