My local kennel club had a new trainer who was offering classes at a discount until she got more training hours under her belt. Since she didn't have big classes yet, and was motivated by wanting to get more experience, she agreed to take my two dogs on in a class with just them (Niko has big issues with other dogs so this worked out great for us). We did eight weeks of just playing around with all different sports like agility, treibball, and nosework.
You might see if any trainers in your area would be willing to offer a "little bit of everything" kind of class? My experience was probably unique, but maybe the concept would be interesting enough for them to try doing it.
Niko: American Showline GSD 5 years old
Rosa: American Muppet Dog (GSD/Border Collie mix) 5 years old