I'll go with other...
Idc if he's technically retired but I'll say Sting
A 12-15 min match with their signature moves minus Taker's dive over the ropes should be a safe match and make it both their last match
Basically a match similar to the Sting/HHH match minus the interferences: chops, punches, signature moves, finisher kick outs, "this is awesome" crowd moment, hand shake in the end
My next choice would be Cena since it basically writes itself... my 3rd pick would be Goldberg simply because its another possible dream match although its as much of a dream match as Sting/HHH was meaning no one requested it but it'd be cool to see it happen for nostalgic purposees