Normal patches are fine, I've done a few repairs with them without really taking the tyre off or getting rid of sealant, unless it's a tiny road sized tyre on a tight rim you can usually just pop off one bead, keep the sealant in the bottom, good wipe with some IPA on a rag, light sanding but don't go mad, glue (rubber solution) on the patch rather than inside the tyre (do that first so it goes tacky) smack on and hold in place firmly as best you can then hopefully reinflate with the sealant still mostly at the bottom so the air pressure can hold it in place for a little while before getting sloshed with it.
Normal patches are fine, I've done a few repairs with them without really taking the tyre off or getting rid of sealant, unless it's a tiny road sized tyre on a tight rim you can usually just pop off one bead, keep the sealant in the bottom, good wipe with some IPA on a rag, light sanding but don't go mad, glue (rubber solution) on the patch rather than inside the tyre (do that first so it goes tacky) smack on and hold in place firmly as best you can then hopefully reinflate with the sealant still mostly at the bottom so the air pressure can hold it in place for a little while before getting sloshed with it.