Here's the thing about this game, this may change in the next few months, and I am not even sure seble gets this: the listed "level" or division of each school is irrelevant compared to the responses to coach calls. All that matters, at any school or at any level, is whether a recruit or recruit's coach responds with (a) available; (b) backup option; or (c) no chance. Go recruit in GD, any player not in your "view" are always flatly "no chance". It's boring, but it does engender more battles for top recruits at each level.
To answer your question, there are schools in D1 for which the combination of poor conference prestige & school prestige make it very likely that many D1 recruits will be "no chance". Many potential recruits will be "backup option". So, at those schools you will need to pulldown a recruit from your own D1 list! That's how this whole game currently functions. The baseline forces RL traditional powers (circa 14 years ago) to remain prestigious to avoid needing to pulldown some kid to play at UCLA.
Zorzii & dacj are both right. When you look by conference you get the Big 6, then MWC, A10, CUSA, Horizon, WCC, then the rest as potentially good conferences (I put CUSA over Horizon due to geographic distribution). You can see the "mid-Major" gems being Gonzaga, Memphis, Utah, UNLV & Marquette. Note that the A10 is basically hamstrung by being geographically trapped between the Big10, BigEast & ACC, but if the A10 were full, then it could be very strong.
And that's where we are, some worlds have very strong MWC conferences. That requires a mostly full conference, but it occupies a pretty good place the way the game is currently played. What happens next?...anyone's guess.