Thug

Fighting dirty
Starting at 3rd level, you can use the bonus action granted by your Cunning Action to make a grapple check using your dexterity for the check.

Under handed
At 3rd level, you gain advantage on grapple checks as long as you are behind an enemy or flanking with an ally, additionally you may count a versatile weapon as finesse if you wield it one handed.

Pocket full of
At 9th level, you can take one minute to take an item from your inventory and turn it into a weapon, you gain proficiency in improvised weapons and can cause the following effects with different items. For each the opponent must make a dexterity saving throw DC your int mod +prof + 8.

Powdered Glass:
one glass vile = one handful if they fail the saving throw they take 1d6 slashing damage and are blinded until either effected by the lesser restoration spell or someone passes DC 15 medicine check to remove the glass they take the damage for a number of rounds equal to half your rogue level rounded down and every time the medicine check is failed.

Coal Dust:
1sp coal = one handful on a failed save the next time they take fire damage they will burst into flames and take an initial 2d8 fire damage and an additional 4 fire damage at the end of each of your turns until they are put out as an action.

Sand:
On a failed save the opponent is blinded for one minute and can’t take reactions until the effect ends they can make a DC 13 medicine check at the end of each of their turns to end the effect early.

Sucker punch
Starting at 13th level, you can now use your sneak attack as long as you are behind an enemy regardless of whether you already have advantage.

Gang mentality
When you reach 17th level, you have a number of reactions equal to your dexterity modifier additionally you can use one reaction to give one of your allies advantage on their next attack.