Recommending a filter is like recommending a wife. It's more about what you like.
In my personal set-up I have an Intellijel Morgasmatron and a Roland (Maleko Heavy Industries designed it) 505 filter module. The Intellijel covers the basic multimodes. The 505 is there because I love the Roland filter sound. The next filter will be the Joranalogue filter. I might pick up a Doepfer Wasp since they are like $100 and have their own unique flavor.
I also have a Xaoc Batumi with the Poti expander for my LFOs. It serves its purpose. But I might wander into something more traditional with PWM for the square wave as well as a reset gate.
I have other gear that can generate LFOs: Intellijel Rubicon II, Tip Top Z3000, Expert Sleeper Disting, Ornaments & Crime, 1010 Music Toolbox Sequencer, Expert Sleepers FH2... so I'm pretty much covered for all my LFOs at the moment.
The bottom-line is this... whatever you decide... you will be wrong. You will have good relationships with some modules and bad relationships with others. Keep the good ones, find alternatives to the "bad" ones.