Unfortunately I am unable to see the clip you referenced. Can you "paste as plain text" the link to it or the original forum post?
I had to reread your post as initially it read (to me at least) that you were requesting the ROM which is verboten here. But you weren't.
That said, we will be glad to help you, but you will be responsible for obtaining your ROMs and "googling" for them for yourself. Same goes for determining what is the best emulator for Amiga.
The GameEx Wiki, while slightly out of date with some features, is still valid for setting up emulators, etc. if your intent is to run it via GameEx.
There are setup issue threads for WinUAE Amiga emulator that you can search via the forum search feature.
If you are not planning to use GameEx and are seeking help to setup an Amiga emulator standalone, then you may need to seek help from the Amiga emulator community as our focus is primarily via the GameEx frontend.