CO is likely a weaker player, and SB is a reg with 8% call open from sb and 8% 3bet from sb. What assumptions can we make about CO range? SB range I would think will be 55-99, some suited broadways, some AXss and AJo that he chooses not to 3bet?

Flop not sure if checking is the best option? I checked to allow the fish to stab or checkback and catchup with his broadways

Turn, I decide to bet now, not so sure about this after my flop check as the 7 shouldn’t change much, so could checking again be an option as the weaker player could see this as a good opportunity to take the pot?

River 5d
SB: Checks
Not to sure what to make of villians range here? Would he check 88-99 twice or a flush draw?
Should we bet the river and what size?