I use Tejio to monetize several of my Telegram channels. The requirements here are quite lenient: you need to add your channel to tgstat, publish at least one post a day, gain 250 subscribers, and have an average of 50 views. The themes of the channels can be anything; half of mine are 18+, and they monetize quite well. Moderation is quick, and they don't nitpick on small details (my channels are clean, and I've never used bots). The earnings are average; right now, the rates are pretty much the same everywhere. Withdrawals happen quickly, and everything arrives in full. Sometimes I promote my channels through mutual advertising. This is a bit easier since you don’t have to negotiate manually. There are mutual advertising credits that you can earn through free ads or buy on the exchange, and with them, you can order ads from other channels with much larger audiences.