Are there any speech pathologists here who can advise me on this issue? Or mums who have experienced the same issue?

My 3.5 year old daughter (she just turned 3.5 yrs two weeks ago) still can not pronounce "g" or "c/k" sounds. i.e. goat becomes doat, mango becomes mando. Duck is dut, come is "tum".
She also says "wabbit" and "somefing", but I'm not concerned about these as most kids her age still can't say "r" or "th". I was just reading that most kids can say "g" and "c/k" by 3.5 years and wonder whether I should be concerned.

She talks a lot. She has a huge vocabulary (hundreds of words). We read together every single day and have done since she was a baby. Adults can understand her at least 90% of the time.

Is it worth getting therapy yet? As of today we've started phonics songs and various sounding-out activities.
Not really sure what to do.