Salary by paid LLP to its partners is allowed as an expenditure to the extent of limits specified u/s 40(b) in the Income Tax Act. This remuneration will be treated as Income from Business in the hands of the partner. Hence, you need to file ITR 3.
If you are getting income as freelancer from others, it will be treated as business income. Hence, you need to include such income in ITR 3 itself. However, if such income is covered under presumptive taxation, then you need to file ITR 4.