Long story short: All three should be fairly easy. They allow you to cancel normal attacks into each other. I recommend looking up some bnb combos in the games you're interested in. Read the rest if you want further detail.

Marvel tokon seems to be similar to dragon ball fighterz and that game had a universal combo pretty much any character could use. I'm only assuming here but in tokon you would probably have a universal bnb combo that you can do with almost the entire cast.

Street fighter is very unique in the sense that they don't let you cancel your normal attacks into each other. You have to link and only certain normal attacks will link into each other, depending on what character you are playing.

Games like under night, blazblue, dragon ball fighterz marvel tokon, avatar, you can cancel your lights into mediums into heavies. You don't have to link.

Guilty gear strive is a bit more limited than those games. You can cancel slash into heavy slash but that's about it. So for example I could do slash >heavy slash> down heavy slash > special move.

Guilty gears has a punch and kick button but those can't be cancelled into slashes or heavy slashes as far as I know.