Cookie consent

Hello all,

Yes, I Google'd it, but there's too many results that say different things, so I would love to ask you guys.

How can I check which cookies are being stored for a user on a website I made? I use several plugins, so no idea what they do. I read that you can check it somewhere. If so, is there also an easy plugin to let users accept or decline all these cookies?

Totally new for me, but it is necessary (EU)..

Can anyone point me in the right direction? Using a plugin would be fine, but I don't know which cookies users have to accept.

Hopefully this makes sense!

Thanks in advance!!