Path of the Retiarius

A retiarius  was a  gladiator who fought with equipment styled on that of a fisherman: a weighted net, a three-pointed trident, and a dagger. The retiarius was lightly armoured, wearing an arm guard and a shoulder guard, or wore no armour at all.  In skilled hands, the net was a useful weapon. The retiarius's primary objective with it was to capture his opponent.  A successful cast of the net could win the battle for the retiarius straightaway.

Iaculum

Starting when you choose this path at 3rd level, you can use your bonus action to attack with a net.  Additionally,when you are raging you do not have disadvantage on attack rolls with a net.

You are proficient with nets.

Additionally, your attacks with a trident deal 1d8 damage, even if you are only holding it in one hand.

Improved Net Handling

Beginning at 6th level, the DC to escape your net improves.  The DC=8+your proficiency bonus+your Strength Modifier.

Additionally, you have learned how to use your net to aid you defensively, while you are holding a net in one hand, your AC improves by 1.

Contraretiarii

Beginning at 10th level, as an action, you can attempt to disarm a creature using your net.  Make an attack with your net, on a hit your target must make a Strength saving throw or your net encapsulates an item of your choice that they are holding.  As a part of that action, you bring the net with the item included back to you.

Rete/Secund

Starting at 14th level, when a creature breaks free of your net, you can use your reaction to move up to half your movement speed toward that creature and make a single weapon attack.