Solo 401k ?

Pros and cons? Who do you guys use? Brokerage commissions? What are the ins and outs and best way to manage one?

Did you have one with your employer and are taking with you?

No. I have never had a 401k.

Mine is through my employer managed by T Rowe Price with a choice of about 25 funds.
Not sure if they are offered by banks like IRA's are.

If it were me I would look at using American Funds you have to use a advisor but they have solid funds and lower fund expenses. I say this having worked as a financial advisor for the last 20 years.
Solo 401k allows for larger contribution limits than traditional IRA. Message me if you need more info.