I ended up going down a pretty deep rabbit hole looking into this. Nick Senzel hit .352/.456/.595 with eight home runs over 57 games in his Junior year but he hit .329 /.415/.567 with seven home runs in 58 games at low A. So obviously the levels are comparable, but it seems like low A is a little bit more difficult than what he was seeing in college.
I found a really cool article about the equivalencies of other leagues around the world: https://www.nationalsarmrace.com/?p=3008
He says the cape cod league is the best amateur league and is roughly equivalent to high A, and a matchup of the absolute best ncaa teams on a friday night would be roughly equivalent to Low A
Brandon McCarthy thinks the best Div-1 teams would have a chance in a 7-game series against a low-A team, but would probably fall short due to pitching depth. (https://www.quora.com/How-would-the-best-college-baseball-team-your-opinion-of-the-best-team-do-against-an-average-team-in-each-level-of-minor-league-baseball-A-AA-AAA?__snids__=1644684008)