I am really sorry to hear you switched off your miner 3 years ago.  I have kept mine running non-stop since 2017,  thinking that ETH price might one day go above $1000 once again.  I have been hodling ETH since the previous bull run in 2017. 
Recently, I sold all my Polaris 4GB cards when the hash rate dropped to 21MH/s or so.  They were still profitable as per today's ETH price.
If I were you, I would sell them since mining alternatives with them are not too good right now.  You could mine ETC or RVN, if you believe in a future for those coins.   
If you want to mine ETH or ETC, then consider using Phoenixminer or Team Red miner as Claymore apparently is not maintained any more.