Custodian recommendation for Roth Ira investing in LLC

[Gabriel C.]

In Podcast #211, Bob mentioned using his Roth to invest in his LLC. I've heard of doing this with a self-directed brokerage for a 401k/IRA and now I'm more curious about pursuing this because of money in a Roth. I'm curious if anyone recommends a custodian other than that Bob mentioned (Sun West Trust in NM) for accomplishing this.

Here is more information on the topic for those interested: https://www.biggerpockets.com/renewsblog/invest-real-estate-self-directed-IRA/