You should use a loudness meter, so you can check how loud actually your song is, so its easier to target specific LUFS values:
For Limiters, maybe you could trying to use a limiter which allow you to target a specific LUFS value like the Ozone one. Ozone Elements was free for some time, maybe this will be offered again:
Dont forget that there is also true peak (which is quite different as “normal” peak), which most streaming services are also using.