You could get the ahrefs trial for 7$ for a week. That will work in your case.
A week is not enough, wanted a month.
Update:
Some hard shit going on in my personal life. It's strange, but I fucking like those disasters

, I'm adapting to everything.
Found solution, not so good as ahrefs, but gives me the basics.
I found out, that I have done pretty good job to my sister's site and it ranks 1-5 for most keywords and generates 2k organically. I don't get any profit from this, but it boosted my confidence and now I know, I'm on the right path.
Artist(this is how I will call this project with the artist, it includes 2 sites of the same person
)
August revenue: 990€;
I found so many keywords in here that have almost no competition and all of the websites are non-mobile optimized. This is a gold mine, I'm sure I can get it to 10k/month in 4-5 months (I get 10-20%)
Clothing brand: We are working on a new collection, and people don't seem to like the current one anymore, it will probably go on big sale. So just a few sales.
GPT website: I'm gonna outsource this with a friend of mine. He is newbie in IM, but is studying website development and other stuff. ( Damn, they study so much bullshit, and no practical stuff. I have my knowledge of html/css since 10 years ago, and can still make a better site than him :/ . But I know his mindset, so he will become really valuable, I just need to give him the right direction.)
Niche sites: On hold
Probably the most boring journey, but it keeps going. :/
PS. I have a few people asking me about my Instagram services, but I'm afraid to start again because of the resent updates. Anyone thought from people doing it?