Another vote for the BX drop in trigger unit. Simple and easy and has a good break and reset. We purchased two several years back for $49 each and have been very happy with the results.
One of our 10/22’s has over 4000 rounds on it since the install and it is still working perfectly.

I’ve got a couple BX triggers and the Vortquzen hammer kits but my favorite is the Franklin Armory binary trigger. The semi-trigger and the binary setting is a smile maker, I like it best in my Charger with the armbrace