All lenders are legally obliged to check that they only offer loans to people who can meet the repayment schedule. (The rules were tightened after the world financial crisis of 2007/2008, which was largely caused by irresponsible lending). So any lender is going to check your credit history, which will show any existing loans.
Loans for unemployed people are therefore very hard to come by and, because of the increased risks that lenders face, tend to come with very high interest rates. Using a comparison website, such as Money Supermarket, will help you to see what might be available to you:
https://www.moneysupermarket.com/loans/loans-for-unemployed/