As for HB0 I think there is a very limited amount of family friendly summits available, all of the summits are above 2000m sealevel. You can have a look at SOTA MAPPING PROJECT … there i uploaded gps-tracks for three of the easier HB0-summits:
HB0/LI-004 Augstenberg 2359m (cablecar, then 3.5km to summit / 400m elevation gain)
HB0/LI-009 Schönberg 2104m (5km to summit / 600m elevation gain)
HB0/LI-011 Helwangspitz 2000m (3km to summit / 500m elevation gain)
If you need further information you can write a PM or e-mail. Also OE9HRV may be of help, he is often in HB0 activating different summits there.
73 de Martin