Going back to 2024 Adamczewski has 792 PA with a strong 16.0 BB% | 18.2 K% while he has gotten more of his ball in play value from a .383 BABIP (11th of 1,083 minor leaguers with at least 700 PA since 2024) versus his .189 Isolated Slugging (178th).
When Josh first started breaking out my first thought for a comp as a short lefty hitting 2B who might be bound for LF was something like Scooter Gennett during his two year breakout with the Reds where he had 1,135 PA of 71 BB+ | 99 K+ | 118 AVG+ | 121 ISO+ for a 124 wRC+.
Feel like that is pretty close, maybe a little hot on the AVG/ISO sides but Adamczewski will probably walk considerably more. Here are some guys in MLB from 2024 to present with at least 1,000 PA that might be along the lines of what Josh could provide...
Ryan O'Hearn (1,377 PA | 124 wRC+)
113 BB+ | 82 K+ | 114 AVG+ | 107 ISO+
Jose Altuve (1,653 PA | 116 wRC+)
95 BB+ | 80 K+ | 113 AVG+ | 102 ISO+
Alec Burleson (1,539 PA | 117 wRC+)
80 BB+ | 63 K+ | 112 AVG+ | 107 ISO+
Spencer Horwtiz (1,087 PA | 126 wRC+)
136 BB+ | 76 K+ | 111 AVG+ | 107 ISO+
William Contreras (1,722 PA | 119 wRC+)
133 BB+ | 81 K+ | 111 AVG+ | 97 ISO+
Fernando Tatis Jr. (1,545 PA | 124 wRC+)
117 BB+ | 91 K+ | 111 AVG+ | 107 ISO+
Christian Yelich (1,235 PA | 124 wRC+)
125 BB+ | 112 K+ | 110 AVG+ | 113 ISO+
Gunnar Henderson (1,809 PA | 127 wRC+)
115 BB+ | 97 K+ | 109 AVG+ | 128 ISO+
Josh Naylor (1,626 PA | 116 wRC+)
99 BB+ | 65 K+ | 109 AVG+ | 108 ISO+
Cody Bellinger (1,628 PA | 117 wRC+)
111 BB+ | 65 K+ | 109 AVG+ | 114 ISO+
Bryan Reynolds (1,768 PA | 117 wRC+)
116 BB+ | 108 K+ | 108 AVG+ | 109 ISO+