Such kind of businesses on the lower budget lines may be:

Online Businesses

-Blogging and Vlogging: Tell it all through content creation about what you love and know-how.
-Freelancing: Doing things like writing, editing, graphic designing, or programming for a price.
-Online Tutoring: Teach the subjects you are good at. Like Mathematics, Science, or Languages.
-Online Shopping: Selling different items, including homemade stuff, digital things, and also the sale of other things by dropshipping.
– Social Media Management: Help businesses in managing their social presence.

Offline Businesses

-Household Services: Go out of your home; it would be like cleaning, cooking, or gardening.
-Household Bakery or Catering: Have your homemade product and sell baked products or meals.
-Repair Services: Electronics, appliances, or bicycles repairs.
-Mobile Food Business: Sell food via cart or truck.
-Handmade Crafts: Sell homemade items at local markets or via the Internet.
Ways for Success
-Identify Your Passion: Involve you in an interest.
-Market Research: Audience measures and contest.
-Small Beginning: One step at a time in small scale, increase eventually.
-Network: Build relationships with customers and prospects.
-Continuous learning: Know the trend in your field and practice.
-Financial Planning: Make a budget and track everything that you spend on it.
-Legal and Tax Compliance: Know that you are complying with all laws related to business.

Conclusion:
Success and triumph in any business would require commitment, hard work, and willingness to learn and change to adapt.