I get to often play with passive players who will just limp most of their hands in the SB. When im in SB i open raise most my hands. So should i mostly raise or just check here? Does the answer change if its 6max/full ring where the SB open limps?

Here's a range of how you could deal with it:
https://www.zenithpoker.com/preflop/vs-limp/
Here's the color chart (use the new key): https://www.zenithpoker.com/preflop/

There is a concept where ranges change for full-ring and 6-max and it's called card-bunching. When 7 players connect with their folding range the chance is bigger that the SB or BB has a good hand than when 4 players connect with their folding range.

I've only heard of this being applicable to push/fold ranges and I'm not sure if it has any effect on BB v SB limp ranges. In any case I wouldn't worry about it.

I have done some work on this using standard EV analysis. The following assumes the only limper is not the small blind.

The EV for BB to just check-call a limp (i.e., no investment) is

EVcheck = 2.5*eq,

where eq is the showdown equity of his hand. Clearly, BB has positive EV.

For a BB raise,

EVraise = fe*2.5 +(1-fe)(eq*(2.5+2*R)-R)

where

fe is fold equity (villain fold probability)

R is the raise-of amount

Then a raise is better than a call if EVraise > EVcheck= 2.5*eq

The following table shows some results for required fold equity given hero equity and raise. Note that since there will be future action unless the raise was all-in or the hand is checked down, this has to be considered a first cut look to be adjusted for factors not explicitly considered such as realized equity, stack sizes, future bets and folds, etc.

Required fe For Raising Limper Rather Than Checking
...........Raise-of in bb Units

eq	1	3	5	7.5	10
0.00	0.29	0.55	0.67	0.75	0.80
0.20	0.23	0.47	0.60	0.69	0.75
0.33	0.17	0.38	0.50	0.60	0.67
0.49	0.02	0.04	0.07	0.11	0.14

Example: Assume BB hero has 33% equity and is considering a raise of 3bb. Then villain has to fold 50% of the time for the raise to have better EV than ‘check-calling’ the limp.

Raise to ~3.5x with a wide, polarized range of hands consisting of hands that happily fold to a limp-raise, and hands that happily continue against a limp-raise. You should be looking to raise the limp about ~40% of the time total. The zenith chart is fine.