I have looked at Digibyte and it does have some appeal, being segwit active, fast, with multiple function layers. An older blockchain and the longest. The 9 billion float is somewhat daunting but we've seen with Ripple that circulating supply really makes little difference in terms of market cap and potential percentage gain.
One very important factor in my filter process is being able to review the core team members. Aside from the founder, Jared Tate, I can find no other individuals. Any info regarding team?
BTW my favorites at this time are OMG and BAT. Have a few Substratum as well but not as keen on it. Both OMG and BAT have functioning business and products as well as outstanding team members and advisers. If you're not already using the Brave Browser you might want to try it out. No ads, no cookies, no trackers!