You can play the engines against each other using Arena Chess on a pc or on Chess for Android if you have an android phone.
How would I play against Stockfish 8?

I don't have access to a Windows pc atm and on the android app I can't find an explanation about the rating of each level. I found a website where I can play against all 15 SF "levels," but there it is also unclear what their elo is.
Is there anywhere else I can play SF 8?

Go to Lichess, click "Play", then dismiss the "Create a game" dialog that pops up. After that goes away, click "Play with the computer" and you can choose Stockfish Level 8.

I'm pretty sure the version of Komodo used by chess.com utilizes an NNUE, and I would like to play several games against Komodo using SF 8's moves to see how closely-rated depth and NNUE engines compare to each other.
Is there an option on Lichess or chess.com or any other site where I can play SF 8? Or is there any specific bot on Lichess that doesn't use NNUE?
I don't believe Dragon is being utilized here, so no NNUE.

I've tried that, but again it doesn't say its rating. Is level 8 of Fairy-Stockfish the same as Stockfish 8?

I'm pretty sure the version of Komodo used by chess.com utilizes an NNUE, and I would like to play several games against Komodo using SF 8's moves to see how closely-rated depth and NNUE engines compare to each other.
Is there an option on Lichess or chess.com or any other site where I can play SF 8? Or is there any specific bot on Lichess that doesn't use NNUE?
I don't believe Dragon is being utilized here, so no NNUE.
Oh. Unfortunate.
I'm pretty sure the version of Komodo used by chess.com utilizes an NNUE, and I would like to play several games against Komodo using SF 8's moves to see how closely-rated depth and NNUE engines compare to each other.
Is there an option on Lichess or chess.com or any other site where I can play SF 8? Or is there any specific bot on Lichess that doesn't use NNUE?