If you're trying to build a player base for a new game, would advertising or sponsorships work best, or a different option?

I’ve been working on a new roleplay game set in the UK - I’m wondering, what’s the best way to build up a player base for this type of game once it’s released?

I’ve done a few test ads before, under R$1000 each, and they all end up with CTR averaging around 1.3-1.5%

I used to Sponsor games before, and they used to do well, but now that they have their own sort on the Discover page and the fact that they don’t show up when browsing through other categories, do these still do well?

Or would using some third-party service such as TikTok to advertise do better, as I’ve heard alot about?

Thanks in advance!