Do you know any recommended businesses, side jobs, or profitable investments that I can do at home?

There are actually many options. Some of the side hustles:
-Participate in paid online surveys
-Get paid to test apps and websites
-Transcribe videos, phone calls, and other recordings
-Become an affiliate marketer
-Tutor online
-Walk dogs and pet-sit
-Start a blog on Substack
-Sell your photography
-Start a podcast
-Design and sell your own t-shirts
-Start a social media page and build income through sponsorships
-Create and sell your own handmade goods
-Start a dropshipping business
-Create a clothing line
-Start a YouTube channel
-Sell digital products
Google, the network has detailed manuals for additional earnings.