Can I pay someone to market my apps for me?

So, I have 4 apps on the App Store and Google Play Store. I've had some success marketing one of them, the Irish Slang app, on Instagram and TikTok. I had one viral TikTok video that made my downloads and purchases spike massively overnight, so I know it can work.

I recently made an Australian Slang app too, but since I'm not based over there, I can't make a TikTok account to target that audience. I tried using a VPN, but it just shadowbanned the account.

I have two other apps I need to market it too.

My apps are well made, and have always had good reviews. I'm just feeling a bit burnt out and unmotivated when it comes to the marketing side of it. I don't really understand the world of paid ads, like ASA, Meta Ads, etc.

Does anyone know anybody who is versed in this stuff that I can hire and pay to market my apps for me?