It just really depends on whether you want a 2 stage trigger or a single stage.
Also, what is your use.
Geiselle's are 2 stage; you can buy the SSA-E as suggested for around $240, or maybe get it on sale for something less. Or you can buy the G2S, put a 3.5 lb trigger spring on & have the same trigger as the SSA-E for a lot less.
If you want a single stage trigger, the Elftmann Match trigger is unsurpassed, period. and expensive at $250.
Or the Elftmann Service trigger is also excellent for a little less.
I also have the Rise 535 & it is the best of the Rise triggers & is excellent...............it's non-adjustable but breaks like glass @ 4 lbs. each & evey time. It's a great trigger. But it's not cheap...........I got it from them gratis or I probably wouldn't have bought it.
MM