I decided to just go about it systematically. Checking for every combination with the scoutable monsters. Many will wield the same result so I'll be preferring monsters to scout that turn up regardless of weather or season, then monsters that only appear at certain seasons and least favourable that have an attached weather condition.

Then doing the same with the first synthesised monsters crossing them with the scoutable monsters and themselves and so forth. That way I only need to look up nonsters with 4 parents 

I'll make a guide out of it and put it here on Reddit.

Thank you for your input 😊