One suggestion I would make to anyone is to research pedals with a specific use case in mind... meaning, ask yourself, which of your synths do you plan to use it on and what exactly would you like to achieve by running each synth through a particular pedal? Do you prefer a one size fits all solution, or are needs more specific?
I'll give an example of my current use of reverb pedals (leaving other pedals like EQ, chorus, phaser etc aside)... and this is not necessarily my "forever" config, just where I'm at now in terms of reverb hardware:
I have the Prophet10 going into the OTO Bam because it is the best I have for transparent vintage sounding reverb with an absurd range of tweakability.. the P10 is a premium synth and the Bam is a premium reverb pedal that works well with it.
-Rev2 going into the BigSky, because the BigSky is a good all-rounder but has some special sauce reverbs like cloud algo that I think go really well with the more precise DCO (Juno-esque) sound of the Rev2. The Rev2 of course has built in FX but only one per layer so I'd free up those for other things and use external reverb.
-Prophet12 going into the Empress reverb because the P12 lacks much in the way of onboard FX.. it does have fantastic delay lines that are amazing when you want to do sound design, but when you're in the music arrangement flow of things and want faster results, it's nice to tap a button with your foot. The Empress pedal combines delay and reverb in one which is really handy... the number of total possible settings are much greater than it looks on the surface since each algo has multi modes.
Prophet6 going into the TC Hall of Fame2... this is a spartan and cheap pedal but it sounds great for basic reverbs and punches way above its weight class in bang for buck... The P6 of course has two onboard FX which really opens up a lot of doors for sound design creativity when you delegate the reverb outside the synth and use them for things like dual chorus or chorus/phaser combos.
So each pedal is paired with a particular synth based on its strengths and how that compliments a particular synth based on how I use that synth... and things will evolve/rotate over time as I get bored with particular combinations and want to try something new.