I would consider Dominik Livaković as one of the best goal-keepers in the world right now. And you are admitting that you would include him in the top-10 list. In case he is in top-10, then automatically he becomes one of the best, right? What separates Livaković from others such as Emi Martinez, Yassine Bounou and Wojciech Szczesny? I can't find anything. IMO, he is at the same level as them. Do you remember the match between Croatia and Brazil during Qatar 2022? Croatia won the match mainly because of Livaković. Unfortunate that he didn't got the Golden Glove.
Those names you named could be around the same level, I am not arguing about that, and top 10 is a stretch but I can put him at 10th place. But remember that this is a dude that played in Croatia national team and Dinamo Zagreb, no big team so far and he is already 28. If he was one of the best, he would have been bought by a big club already.
Ederson, Alison, De gea, Courtouis, Lloris, Der Stegen, Neuer, there are many goalkeepers I could still name that are better than him, these players played at the top teams and won top awards with their teams and they deserve to be considered much better than Livakovic without a doubt, they are definitely not even close in talent, I would consider livakovic one level below those type of big club goalkeepers and still good, just not as good as them.