I think Liverpool are the least attractive big club around, to be honest. They usually can't compete with their rivals and European big clubs financially (they pay lower wages, and can't spend as much on the market as others either), can't pull big names, and achieved most of their real success in the 1980s and before that, so just before football started becoming a big global phenomenon. This pretty much meant that their popularity had no chance of soaring to the levels of United, for example, who started their most successful era ever just around this time, in the early 1990s. I really don't think most footballers would choose them ahead of Arsenal and Chelsea at this point, and those clubs don't have anywhere near the European pedigree they do, they've just been more successful in the 1990s, 2000s, and 2010s.
Right now, they're coming off of their peak in the modern era (2017-2022), and their pull was nowhere near as big as it should've been during those years. Do you think Liverpool could sign all the players United managed to sign when we had no CL football, for example? Players like Di María, Pogba, Ibrahimovic? No shot IMO. The biggest name I can remember them tempting to join them was probably Klopp. And the players? Maybe Thiago?