Top-20 monthly slots ranking (July 2020):
Book of Dead - Play'n Go
Starburst - Netent
Bonanza - Big Time Gaming
Piggy Riches Megaways - Red Tiger
Wolf Gold - Pragmatic Play
Gonzo's Quest Megaways - Red Tiger
Gonzo's Quest - Netent
Reactoonz - Play'n Go
Legacy Of Dead - Play'n Go
Cash Noire - Netent
Doom of Dead - Play'n Go
Eye of Horus - Blueprint
Reel King Mega - Red Tiger
Fishin Frenzy Jackpot King - Blueprint
Eye of Horus Megaways - Blueprint
Bounty Raid - Red Tiger
Star Clusters - Big Time Gaming
Street Fighter II - Netent
Buffalo Blitz Live - Playtech
Who Wants To Be a Millionaire - Big Time Gaming
Source:
http://www.igamingtracker.com/egr-top-20-rankings/If you are bored with Starburst, you can try Secrets of Atlantis (97.07% - Med) also by Netent.
From OP, Removed:
* The Dog House (96.51% - High)
* Return of Kong Megaways (96.03% - Med/High)
Added:
* Bronco Spirit (96.63% - Med): I couldn't understand why collecting wild is so addicting!