Hi Zuggamasta,
You are welcome! Filters, yeah you are going to need them :-) There are two filters I would like to recommend, the Doepfer - A-124 Wasp filter (or if that one is "too heavy" for you consider then the Doepfer - A-106-5 SEM filter) these both are lovely filters, affordable and easy to use. The second one I like to recommend and if you are going to look for a dual filter, you might want to have a look into Erica Synths - Black Dual VCF, it's a bit crazy one but I love this one. This filter is just lots of fun to use it and puts a smile on your face while using it.
Naturally there tons of filters but don't start with too expensive filters and too "wild" ones, start easy then look around for the more "adult" stuff ;-) Once you gained more experience on filters, then you might want to look into QPAS from Make Noise, a special filter as I may say so but don't straight away buy that one, it's not recommended for beginners however you could consider to put it on your watch list for later.
Well have fun, enjoy your modular system and good luck! Kind regards, Garfield.
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads