OWB... Raven. Great product. Got mine used from eBay for about 80$.
Didn't even want an OWB for my gun until I won mine for that bid.
it arrived and looked unused. Very comfortable under a suit and hides well with good retention.
IWB... Bawidamann makes a superb AIWB. Hides under a TShirt without printing and comfortable for all day wear. Took about 2 weeks to come in... Can't complain about that wait for a Roland holster.
Other good IWB option is Nickydex.com. hides great, still working out most comfortable spot... Its my 2nd favorite behind the Bawidamann. Was about the same price, but the wait time is much longer.
I've tried a few others, but I'm happy with the 3 above. Customer service was great with Bawidamann, direct emails within minutes. Have 2 of his holsters now... One for a G43/TLR6 as well which hides my Rolanito like a champ.