⬥ If stuck, Google and Wikipedia is always your friend.
⬥ You can search for a single-word anagram here, and multi-word anagram here.
Red Luth contains an array of decoders.
⬥ You could also search keywords in dCode to find relavant decoders.
OEIS proves that virtually everything can be encoded in sequence.
⬥ Not related to the puzzle solving tools, but I found ASCII Art as the hidden gem when building this game 🙂