As maybe some of you know, I'm not biggest fan of Marco Silva, so I compiled a list of managers who are imo attainable by a club of our size and have better credentials than our current manager. I divided them by countries they're currently managing and there is a list of unemployed ones as well. There are lot of suggestions in other threads, so it would be better to keep it in one place.
PS I tried to keep it realistic so I didn't put the usual suspects like Mourinho, Blanc or Conte here as there's no way we could attract them. Moyes didn't make it as well
Unemployed
Julen Lopetegui (last managed Real Madrid)
Peter Stoger (Borussia Dortmund)
Heiko Herrlich (Bayer Leverkusen)
Vincenzo Montella (Sevilla)
Gustavo Poyet (Bordeaux)
Phillip Cocu (Fenerbahce)
England
Eddie Howe (Bournemouth)
Rafael Benitez (Newcastle)
Marcelo Bielsa (Leeds)
France
Christophe Galtier (Lille)
Bruno Genesio (Lyon)
Thierry Laurey (Strasbourg) - impressive work with Strasbourg, he promoted them to Ligue 1 and they're sitting on 5th place with a League Cup final to follow.
Patrick Vieira (Nice)
Rudi Garcia (Marseille)
Spain
Jose Bordalas (Getafe)
Marcelino (Valencia)
Quique Setien (Betis)
Germany
Adi Hutter (Frankfurt)
Bruno Labbadia (Wolfsburg)
Italy
Gian Piero Gasperini (Atalanta)
Simone Inzaghi (Lazio)
Stefano Pioli (Fiorentina)
Other
Marco Rose (Red Bull Salzburg)
Giovanni van Bronckhorst (Feyenoord)
Steve Clarke (Kilmarnock)
Sergio Conceicao (Porto)