Yes

The bonus action has two criteria for triggering:

• You take the Attack action
• You make an attack with a light melee weapon

If you have multiple attacks in a single Attack action because of Extra Attack, you only need to consider a single one of the individual attacks you make when triggering the two-weapon-fighting bonus action, not the entire Attack action and all attacks you made as part of it.

So if you are fighting with a shortsword and a hand axe, and you make one attack with each as part of your Attack action:

• You took the Attack action and made an attack with your shortsword, so you can use a two-weapon-fighting bonus action to make an attack with the handaxe
• You took the Attack action and made an attack with your handaxe, so you can use a two-weapon-fighting bonus action to make an attack with the shortsword

Of course, you still only get one bonus action per turn - so TWF only ever gets you one bonus attack, even if you have a choice of multiple weapons you could use it with.

Yes

The bonus action has three criteria for triggering:

• You take the Attack action
• You make an attack with a light one-handed melee weapon
• You are wielding or can draw a light one-handed melee weapon with the other hand

If you have multiple attacks in a single Attack action because of Extra Attack, you only need to consider one of the individual attacks you make when triggering the two-weapon-fighting bonus action, not the entire Attack action and all attacks you made as part of it.

So if you are fighting with a shortsword and a handaxe, and you make one attack with each as part of your Attack action:

• You took the Attack action and made an attack with your shortsword, so you can use a two-weapon-fighting bonus action to make an attack with the handaxe
• You took the Attack action and made an attack with your handaxe, so you can use a two-weapon-fighting bonus action to make an attack with the shortsword

Of course, you still only get one bonus action per turn - so TWF only ever gets you one bonus attack, even if you have a choice of multiple weapons you could use it with.

Yes

The bonus action has two criteria for triggering:

• You take the Attack action
• You make an attack with a light melee weapon

If you have multiple attacks in a single Attack action because of Extra Attack, you only need to consider a single one of the individual attacks you make when triggering the two-weapon-fighting bonus action, not the entire Attack action and all attacks you made as part of it.

So if you are fighting with a shortsword and a hand axe, and you make one attack with each as part of your Attack action:

• You took the Attack action and made an attack with your shortsword, so you can use a two-weapon-fighting bonus action to make an attack with the handaxe
• You took the Attack action and made an attack with your handaxe, so you can use a two-weapon-fighting bonus action to make an attack with the shortsword

Yes

The bonus action has two criteria for triggering:

• You take the Attack action
• You make an attack with a light melee weapon

If you have multiple attacks in a single Attack action because of Extra Attack, you only need to consider a single one of the individual attacks you make when triggering the two-weapon-fighting bonus action, not the entire Attack action and all attacks you made as part of it.

So if you are fighting with a shortsword and a hand axe, and you make one attack with each as part of your Attack action:

• You took the Attack action and made an attack with your shortsword, so you can use a two-weapon-fighting bonus action to make an attack with the handaxe
• You took the Attack action and made an attack with your handaxe, so you can use a two-weapon-fighting bonus action to make an attack with the shortsword

Of course, you still only get one bonus action per turn - so TWF only ever gets you one bonus attack, even if you have a choice of multiple weapons you could use it with.