MariaDB's "Business source license" seems like a good bet to me. It has enough consumer protections in it that even I, as a free software zealot, will accept it. Mostly protects the 4 freedoms and compromises relatively little but you are allowed to customize the BSL to do things like lock out commercial use.
The BSL seems extremely restrictive to me. Even using the software in a non-commercial, personal capacity is not allowed unless it is for "development". The uasge of the term production/non-production is vague and potentially extremely broad.
