Few question about SEO before I open new site

Hey few question guys I will be happy getting help!

1. It's better to buy old domain from new 1 for low keywords?

2. how can I check if my niche have a lot competition or its easy to rank? I just think its easy but I want to make sure.

3. This going be movies site so I need very very fast site what is the best option from the host sites? hostgator is the best?

4. I read a lot about on page SEO and when I finish this I understand that I need create/buy backlinks so - It's not going be english site where I should buy this backlinks?

5. Question 2 is the most importent for me so again how can I check that I don't have really high competition?

Thanks for all the answers, sorry for my english.

anyone?

1... For low competition keywords you can just buy a new domain. If there's no content in google for those keywords, or if the content is bad and you create better content you might rank fast;

2 and 5... use SEO tools like Ahrefs or Keyword Titan (but they might be expensive)

3... hostgator is not the best, but I don't know what the best hosting is. I use namecheap and I'm OK with them, but if you will get a lot of traffic Namecheap (well, shared hosting in general) might not be good. You might want to look into dedicated / WP hosting, or VPS

4. I don't know. You could try to do manual web 2.0s with content in the language of your site and with anchor texts in the same language, or maybe spam the hell out of your website with tools like GSA / Xrumer / Scrapebox, especially since you website is in the movies (pirated movies??) niche

Buy new domain name. That will have no history (black or white). And you will complete SEO which is 100 relevant to your niche.

1. Old domain will rank quicker.
2. Use tools such as ahrefs, semrush, moz, etc. Most have free trials.
3. Host where your target market is.
4. Make the backlinks yourself.
5. See 2 above

1.New one can work

2. Keyword Research

3. Hosting and site speed is two different thing. I would say look at top 10 ranking sites for your main keyword. Check hosting they are using. Try to use those host.

4. On page-
Keyword must be present in title, head and in body that's basic.
Back links here on BHW. Non English keyword in English content may work.

5. Keyword tools, one thing is if you want target specific country try country specific domain