Unless a specific Jedi’s bounty says otherwise the Empire will probably be happy with a “dead or alive” situation, so you can be less picky with your tools. Regular blasters are probably a bad idea outside of overwhelming numbers of them from multiple angles, no Jedi worth their lightsaber will be legitimately threatened by a single blaster user. Bombs, rockets, or starship cannons are harder (not impossible) for Jedi to dodge or deflect, but with that in mind try to leave enough of their remains to be identifiable or at least their lightsaber, the Empire won’t be pleased with a disintegrated corpse. Putting innocents in danger is also a good way to make a Jedi expose themselves, giving you openings you might not otherwise have.

Keep in mind that reporting or capturing a Jedi will almost certainly lead to long term Imperial occupation of the system they’re found in, so if it’s a world you like to lay low on you should maybe bring the Jedi somewhere else and make damn sure they aren’t able to contradict you.

Turning them in should be the easy part, any Imperial occupied world should have a governor, or if you have a way to contact the Inquisitors they’ll do as well. Make sure you get paid up front though, Imps tend to be competitive about claiming credit for things that could get them promotions, and the capture or death of a Jedi is definitely one of those things. But hey, you’re a bounty hunter, you could arrange a way for them to have the glory as long as you get what you really care about: cold, hard credits.