I would first tell him not to rush into anything. I was single again after my divorce, for a few years before I started dating again. It took several more years thereafter to find my spouse. She has been worth the wait, but during those dating years I came to see how awful women are to men in the dating world, nowadays. I am glad to now be very happily married and hopefully permanently off the market.
My experience is that dating-age women today SUCK. They treat men like garbage and don't respect men. If you're not 6' tall, handsome, athletic, and have a great job and income you'll be used and then she will date up to the next level until she's finally found someone who has "everything". By then, she may no longer be young and attractive. Men are tired of women who are a 6 acting like they are a 10, and of being disrespected. So, many young men have dropped out of the dating game. I will say age can be a plus, for men. I was in my mid-40s when I found my perfect match. I'm not 6' tall but was established in my career, stable, mature, and healthy (at the time). 5 years later, we have three amazing little kids (youngest is 4 months) and a small farm. My bride is from a strong Catholic family here in the US. There are good women who are "native" but they are hard to find. Marrying a foreigner has liabilities of its own and is not a cure-all for the issues US-born women present marriage-minded men. I have known foreign-born women who marry long enough to gain citizenship, then divorce.