I currently hold some very good coins and made a fortune in 2017 but lost most of it due to the crypto winter... But... now is a great time to stocktake and fill up on more good coins !
My question is.. what's your coin of choice that was very high in price back in 2017 (compared to now) that is most likely to to see massive gains again when the Bitcoin bulls return again soon? I recall BCH doing quite well compared to its current price, for example..
I think you'd better to keep all of them up, and wait for nay increase of every coins that you had. Hopefully there will be time when the bull run happen, all the coins that we kept will also increase.