Generally speaking it would not be wise to make a winter move for someone who is not in form.
Rodrigo, Piatek, Eriksen, these are not the type of signings we can expect to make an impact in the second half of the season.
Opportunities of the market are for the summer window.
Basically if we want a striker we need to see who is banging them in right now in Ligue1, Eredivisie, LaLiga, EPL, Portugal, Bundesliga, Scotland, Salzburg. Then compare the current scoring rate with the upside and being a Barcelona fit.
The man was Haaland- or Edouard if we want a gamble.
Basically we are f*cked and gonna sign no one unless its a nonscoring castoff.
Lastly I don't see what's so bad in Ansu/Bele-Travolta-Messi. I mean, why the F do we sign Griezmann to be AML??? And even more so now when Suarez is out.