Try parashar lake trek, or kasol tosh, or parvati valley trek. You can find many local groups there, who mostly come for travel at weekends. even if you do solo, there will be many people you can find on your trail, you will actually never be alone. also you can contact many travel groups online, like trippers, traveldevil, yayavar club, also, indiahikes and Himalayan trekkers. These online platform can help you better for your itenary and planning, will also have a group trek vacation oragnised at reasonable rates.