You can search for colored manga on specialized manga websites or platforms. Some artists or groups might upload colored versions of popular manga there.
To get a manga published, start by perfecting your art and story. Create a portfolio that highlights your best work. Look for publishers that are known for the type of manga you've created and send them a well-prepared submission package, including a synopsis and sample pages.
To get manga on Kobo, first, make sure you have an account. Then, use the search function to look for specific manga titles or browse through relevant categories. Some manga might be available for purchase or as part of a subscription service.
To get manga on Tachiyomi, first, you need to enable Unknown Sources in your device settings. Then, look for manga repositories online and add their links in Tachiyomi. Remember, only use trusted sources to avoid any legal or security issues.