Well if you plan on waiting for studies to come out then you'll be bald (or dead) by the time that they do lol. Propose a solution then get back to us.Honestly you don't look bad in that picture. I think with more facial hair you'd look even better.
The problem with all of those is not enough research to prove efficacy and safety.
Topical dutasteride- found 1 very small study on mesotherapy with these injections about 3mm deep and it seemed great. But it isn't available in the USA. You may have to travel to Europe to try. I've seen too many anecdotes of topical dutasteride not working at all because it can't penatrate the skin well and reach the follicles.
RU58841 - mpmd uses it and swears by it but I've heard people used it and it didn't help much. Breezula (cb 03 01) is another topical that sounds like will be a total failure. My hope is on kintors products but those have a high chance of failing because they would be very dangerous once systemic. If they can get the high binding affinity of dht along with the drug breaking down once in the blood or staying local then you'd have a true alternative to finasteride.
Saw palmetto - unproven
Fluridil - too weak, just like cb0301.
Ketoconazole - unproven