Every final table or game is different, but this is basically how I play approach final tables when I grind online. I also think having a basic understanding of ICM will help you achieve more success at final tables, and tournaments in general.
Step 1:
Fold every hand to BawseGrind (joke)
Step 2:
Play tight. Pay jumps at final tables are more valuable. If short stack, widen your range a little. I'm shoving ace rag with 6bbs or less almost automatic any position at a final table. Players usually eliminate themselves, and it's +EV to survive.
If you have a big stack, try to avoid other big stacks unless you have a monster. Don't be intimated, and make smart decisions. If you decide to bluff try to pick your spots, and look for leaks to expose.
Step 3:
If you made it to the final 3 players, it's win now mode. I'm being aggressive with any pair three handed, and raising my ace rags. Step 2 rules still apply, but play with more aggression.
Step 4:
Dominate heads up. Battle.
