When you say it didn’t work did it just not give you any output at all or was it just bad output? TripoSG is probably the ‘safe’ option just because it let’s you gen more sprites but https://www.tripo3d.ai/’s model is a little stronger for quality and inference
Also make sure you’ve removed the background as best as possible before upload. I just paint.net and the magic wand tool skipping the online removers, it takes ten seconds and you can adjust as you’d like