There are lots of treks.
1. valley of flowers
2. Buran Ghati
3. Satopanth Lake
4. Kedarkantha
5. KGL
6. Hampta pass
7. Kedar tal
and lots of lots of treks. You just need to choose according to you fitness and experiences.
There are hardly any savings here on the already exorbitant prices. For me its more of a satisfaction to be connected to travel evn when im not travelling and to genuinely help people seeking any advice.