Team vs Bardock sjj, Super Gogeta and Broly ssj

The best way to counter them is by using a frieza force team. A party that consists of grn ginyu, blu 1st form frieza, yel final form frieza, pur chilled, blu dodoria, and yel 1st form frieza should do the job

Like Haf1 said, Frieza Force Team would counter them, also the Android team which is what I’m using and it work flawlessly; Use #16 Self destruction to get rid of Purple Broly, and most Androids have boost against saiyans, Perfect Cell will increase their Strike Cards cost every time he enters the battlefield (Most saiyans are melee so this helps), Android 17 have a lot of crowd control, it’s tanky as fuck and has a low cost barrier to block combos/special attacks, and Android 18 Blue is your main damage, her special move will apply debuff on them and Androids are very tanky if you have the proper bench z-ability Android characters.

*You will need a lot of practice and timing to learn how to use #17 as he is very hard to use but really good once you master him. People will quit after fighting a master player of #17.
*Use #16 only for cover change and to self destruct On Broly when he use his vanishing, if you fail to use it it will be a tough match.

Always begin with 17 to make sure they waste all their stuff, then bring 18 to use her ability which increase damage for 30 seconds (use 16 if you get caught in a combo for cover change).

Regenerations Team is the best option rn. With your main chars as Demon King piccolo, majin buu and Green SP piccolo.
Majin buu: heals every ally with main abillity
Piccolo: switch in when your opponent gets you in a combo (reduce enemies dmg when switched in)
Demon King Piccolo is your key card to beat SSJ Broly.
And add janemba and other regeneration support unit in the bench

I currently use Blue Bardock SSJ broly and Red Broly and hope that my opponents units are weaker or that im lucky that match since i dont have Demon King piccolo.