You haven't specified any financial constraints, so...
Get a Duo Discus, with a good trailer and solo assembly rig.

We have a small syndicate/club. I assemble the Duo myself
and I'm ready to fly in the time many clubs take to unpack a hangar.
Easy to fly, suitable for primary instruction through advanced XC.

Of course, you're going to spend a bit more money than
some of the other options discussed, but it will retain its
value with very low maintenance costs, and you will never
be dissatisfied with performance or suitability for transition
training. Go fly it in a contest with a more experienced
pilot if you want to learn something (our Duo is featured
in the movie "A Fine Week of Soaring" with Karl Striedieck).

Get it equipped with two parachutes, and an ILEC SN10
varior/flight computer with Garmin GPS-35.

Only issues with club member assembly/disassembly: once
I dinged the gear doors putting it into the trailer, so we bought a
spare set of gear doors so it can be easily field repaired if
it happens again.

For clubs that own a Duo, its first out of the hangar in the
AM for primary training, some XC during the mid-day, and
then back to primary training late afternoon until dusk.

This is not at all crazy or out-of-reach for a small group.
Think seriously about it !

Best Regards, Dave