Who to ask for advice

Hi! I don’t have a lot of money and I don’t know where to start to look for info about buying a house. Should I go to Citizen’s Adviser, should I speak with someone at my trade union from work (I pay some subscription), should I contact a financial advisor, should I speak with my bank? Could you please help me? I don’t want to fall into any scam and my only help is ChatGPT. Thank you!