A slow-cooker is your friend If you don't have much experience.
Start with peeled & diced root vegetables: potatoes or turnips,
carrots or parsnips, then flavourings: onions or leeks, celery, etc.
Put in whatever cheaper meat cuts you like: Chicken, Beef Chuck
or Round Steak, Pork Butt or Ham Shoulder, Lamb Shanks, etc.
Small veggies: peas, corn, green beans, go in the last 15 minutes.
Add over 1 cup of liquid to prevent scorching: water, stock, wine, etc.
Cook 5-7 hours on Lo, or 3-5 hours on Hi, the longer the better.
Any meat is going to be fork tender. Browning just improves taste.