To name a few,
avast, bitdefender, mcaffe, ... etc..
As the subject says. do they really provide enough security with transactions especially in crypto?
No, they do not help in "transactions" of crypto currencies in anyway. Their only task is to keep your computer secured form viruses and to some extent from external attacks. But, they can help keep your wallets secure from hijackers. Though, there is no such guarantee and you can not rely on some anti virus to keep your wallets/coins safe.