You do not have to be a real climber to be able to visit Nepal and learn a lot about the nature and culture of the local communities. Annapurna trek, whichever you will choose, is hard but not extreme. It does require some strength and stamina but most of the people visiting Nepal can cope with the itineraries. There is some information about available treks on https://asian-trekking.com/events/annapurna-expedition/ webpage.
You have the following choice:
Annapurna Base Camp Trek,
Around Annapurna Trek,
Around Annapurna – Walk in Bulbulle Trek
Ghorepani – Poon Hill Trek.
Asian Trekking is an experienced and licensed company that prepares all that adventures in a very proper way and cares for comfort and safety of all participants. Every trek offers something different, so it is worth looking carefully through all the itineraries before you choose one.