According to my experience, and feedback that was given from my Buyers following  models

fit true to size:
Mexico 66
Ultimate 81
Ultimate 81 LE
Ultimate Tiger
Lawnship
Tai Chi
Injector (runs small in width)
X-Caliber
Saiko Runner MT
California 78
Colorado Eight-Five
Fencing LA
Corsair
Himalayan Tiger
Target Archery
Tsunahiku
Rotation 77 womens HL8A8

run large:
Fabre BL-L men's (unisex) HL317, HN7H2 (also is wider then M) runs a half size large but only from US mens size 10 and up; from US mens 9.5 and below fits to size
LayUP 72 (unisex model; runs large in US mens size 13 only)

run small:
Yoga
Rotation 77 unisex (runs a half a size smaller: 10=9.5)
Wrestling 81 (runs full size smaller: 10=9)
Wizzer (runs full size smaller: 10=9)
VINTAGE MODELS FROM 80s and 90s

Please note that some releases  of those models mentioned above could fit differently. Always read description before you buy.
To make sure that you are purchasing right size you should always know your size in CM (centimeters) and in EU. If CM or EU is different then your usual size this might mean that you need another US size.
To obtain your size in CM  or EU see the conversion chart or check manufacturer tag inside a pair that you are already own.

If you found this guide helpful, please vote below, or send me a message with ideas on how to improve it further. Thank you!