"HELP! Need ab exercises...."
No. You don't.
Nobody "needs" ab exercises. Of any type. They're a hype and a scam.
Any exercise you do with your body, such as almost all weight lifting you're doing with arms and legs, will engage your core in stabilising your body. That's all it's there for, and that's all the workout it needs.
I would skip your abs entirely until you're able to do them properly again with a healed shoulder. You won't lose anything.
Deb, in New Zealand