Where can I find a list of EA’s to test in strategy tester (in MT4)?
You can find such lists at multiple locations. Such as myfxbook. The lists are not complete as there are an unlimited number of EA’s. An EA is just a script, so everyone can write one. I myself have already dozens of them. So you have to put some effort in it to find one that suit you.
But also consider that there are many ways to influence the working of an EA as the trade journals won’t show whether the EA owner traded manually to compensate the weak points of an EA.