What`s you play against unknown?
How do you play vs reg without very agro dynamic?
It`s tough spot, because if I check/call and check turn, I give him a lot equity, because it`s more likely that he don`t barrel. The stack sizes are too deep and I can`t check/raise/call(jam) profitable.

PokerStars - $58.74+$1.26|10/20 NL (2 max) - Holdem - 2 players
Hand converted by PokerTracker 4

SB: 26 BB (VPIP: 72.17, PFR: 52.00, 3Bet Preflop: 42.42, Hands: 133)
Hero (BB): 24 BB

SB posts SB 0.5 BB, Hero posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has T J

SB raises to 2 BB, Hero calls 1 BB

Flop: (4 BB, 2 players) T 8 8
Hero checks, SB bets 2 BB ???

I'm not an expert in sng, just started getting my feet wet, so take my advice for what it is.

An aggro reg with that vpip should have a lot of air on this board, if you check-call you look like you have the kind of hand you have, a bluffcatcher. So if he is any good he should barrel quite liberally ott, what he doesn't know in this particular instance is that actually you are at the top of your bluffcatching range and therefore you should call quite liberally.

C/r/calling it off would probably involve more dynamic with this specific player, I would consider it if you have been c/r'ing a lot, in that case he may be more likely to rebluff or push with underpairs against your draws. If you haven't been c/r many flops or if he is a low level thinker then a c/r would look like you mostly have a good draw which is planning to call it off or a slowplayed overpair or tp2k+ and you would make him correctly fold his air (which is a lot) that we want him to spew his stack off instead.

without any read i would ch/r here. we def get value from other hands and i need to balance my ch/R range on that board, bec i will also ch/R here with air from time to time

If we are really readless in debatable. We have at least133 hands. In case we are readless I think check-raise is the best line because I see villain to cbet many Ax,Kx who find a fold against a check-raise and we just give them their equity who find easily a check-back on the turn. Against someone who likes to check-behind Ax and manx Kx we dont have to fear that many hands on the turn and we gain a lot of value from villain if he wants to barrel. We dominate many gutshort and we dont lose more against a good draw because they get it in anyway.

Readless I guess it would be pretty bad to get it in here.

With a very aggro dynamic it seems standard tho, he def. should be 3betting bluffing a decent amount for 4bet shoving to be profitable.

It would be nice to have cbet%.

This is super counter intuitive, being readless has the huge advantage of just playing in a vacuum and not being balanced. For the most part we think it's a spot he continues wide (by floating or re-raising) such that we should raise wide for thin value, or we think he folds a lot so we can c/r wide. We shouldn't be balancing here at all, readless.
*However you can be wideish for value, and wideish as a bluff because of dead money overlay.

If his 3bet vs our c/r is gonna be honest then c/r and getting it in against a tight value range which we are crushed by isn't good just to protect against Ax/Kx which has like 13% or something equity against us.

I have hands with this player, but I am interested in:
"What`s you play against unknown?
How do you play vs reg without very agro dynamic?"
Because of that I don`t post any stats.

I would just call in this spot against unknown and chek/raise a ton against reg...

this is a standard raise, you have way too much equity against his overall range and his continuing range. an unknown just doesn't barrel enough here, so you let him realize too much equity by calling.

I'd like to see calculations of this, how you got the number that says it's unprofitable to c/r/call jam here.

just c/r/call jam next time.

What range do you think a random will gii on the flop with?
Because If I check/raise to 100, I need ~35.5% equity to call.
Do you think a big % of the random players will stack off on the flop with a lot Tx, 97, flush draws. The stacks are too deep and I think a lot randoms will just call with a lot draws and maybe some weak Tx.

I check raise/gii.

c/r all day long and gii in most cases. you are almost never readless (if you have only played 2 hands prior & villain folded pre first 2 hands that a read), but i might be able to find an exploitable fold readless and/or versus weak players