Let me start with a disclaimer: This is my opinion. I'm sure people are going to have other opinions. But this is what works for us.
Last year we switched from an analogue board to a Behringer x32. I will tell you why I like it. It has more features than I think we will ever need and if we do need them they are available.
Instead of me listing everything I love about the board you should just check it out on their website. Or there are hundreds of instructional videos on Youtube you can take a look at.
Again, this is my opinion.Good luck. I know this is an important decision.
I recommend the Allen and Heath QU32 or Soundcraft Expression 3. Most of the boards in this area of the market have very similar features, and all sound great. I have found the Allen and Heath QU and Souncraft Expression lines to be much easier to teach students and community volunteers who are transitioning from analogue boards, or who may not have a great deal of sound experience. The work flow and layout has fewer buttons and distractions that make it easier for an operator to adapt to (less intimidating), while still having the internal controls that give you a great deal of processing and flexibility.