Have real beard not goate one
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There is hope for you if you are willing to put in the work and accept that there's some small chance you will become hairier overall. It's called minoxidil:
Here is one really good YouTube channel for getting a rundown. It really does work even for bloody Southeast Asians and Native-Americans. It was originally blood-pressure medicine when they noticed it had the odd effect of causing hair growth wherever it was applied on the skin and companies picked it up as a hair-loss product and then some dudes on the interwebz started thinking and experimented with it for beard growth and voila.
It does work for stopping hair-loss on the scalp but the issue with it there is that you have to use it endlessly for the effects to remain as whatever is causing your scalp's hair-loss will resume the moment you stop using it and it can cause all kinds of skin irritation and dryness but the benefit with beard growth is that you just have to wait until your beard hairs reach what is called the "Terminal stage" (very dark & coarse hairs) and once that happens (usually in 3 months to a year) you're done and never have to apply it again = just some months of likely skin irritation if you're willing to weather it.
That one guy's channel I shared explains things better and good luck if you're interested and were not at all aware of this, abowe.