Is there a way to know the composition of a Team GO Rocket before going into the fight?

Question

Yesterday during the GO Rocket event, I had something annoying. Not knowing the composition of an opponent before going in meant I could wipe only because I came in with a few water types only to face a Venosaur.

So is there a way to know what you'll be facing before going into a fight with GO Rocket?

Answer 1

The "taunt" line that the grunt says (right when you're confirming your team) will hint at the general makeup of the grunt's team--particularly the third Pokemon.

• BUG – Go, my super bug Pokemon!
• DARK – Wherever is a light, there is also shadow.
• DRAGON – ROAR! … How’d that sound?
• ELECTRIC – Get ready to be shocked!
• FAIRY – Check out my cute Pokemon!
• FIGHTING – This buff physique isn’t just for show!
• FIRE – Do you know how hot Pokemon fire breath can get?
• FLYING – My bird Pokemon wants to battle with you!
• GHOST – Ke…ke…ke…ke…ke…ke!
• GRASS – Don’t tangle with us!
• GROUND – You’ll be defeated into the ground!
• ICE – You’re gonna be frozen in your tracks.
• NORMAL – Normal doesn’t mean weak.
• POISON – Coiled and ready to strike!
• PSYCHIC – Are you scared of physics that use unseen power?
• ROCK – Let’s rock and roll!
• STEEL – You’re no match for my iron will!
• WATER – These waters are treacherous!
• RANDOM – Winning is for winners, Don't bother, I've already won, and Get ready to be defeated

Source 1, source 2 (credit to Wondercricket), plus hints as to good compositions to bring.