Kobold Press is creating its own DnD 5e with Tales of the Valiant, but deciding how close to stick to the source material was a big source of debate.
Kobolds Galore! – 5e and Fate Core – Tangent Artists Tabletop
Kobold press' “5E clone” aims to end “monopoly on D&D” : r/DnD
One-on-One Roleplaying: Problems to Plan for and Avoid in Your One-on-One Game - Kobold Press
One-on-One Roleplaying: Adapting Published Campaigns - Kobold Press
Kobold Press: for 5th Edition D&D Players and GMs/DMs
Playing One-on-One - Kobold Press Store
Kobold D&D 5th Edition on Roll20 Compendium
Kobold Dispatch: New Edition - Kobold Press
Adventures from the Potbellied Kobold, Roll20, 15 Adventures for 5E - Jeff Stevens Games
Tales Of The Valiant
Kobold Press: adapting DnD 5e is a “challenging line to toe”