I'm a couple months late. There are a lot of choices out there. Some very cheap some expensive. Are you looking for a beginners style small amp? You can get them fairly cheap. Try searching for "practice amp."
All amps have tremble and bass switches. If you're a beginner a cheap 10 to 15watt amp should be fine. They are plenty loud. You can even get name brand practice amps for cheap. Hope this helps.