Would you accept domain names as collateral? Or an altcoin not in top 500 but that has decent liquidity?
I accept domain names paid 15% of the price on Estibot. (on my discretion)
I can accept altcoins which is not in top 500, if it has enough orderbook liquidity and you give 200% of collateral value for the loan your are going to request.
This means that if you want to request 0.05BTC loan with such altcoin you must provide 0.1BTC worth of altcoins and guaranteee that is listed on a trusted exchange where I can liquidate your collateral if needed.